CMF Watch Pro 2: Scientific Review (New Nothing Watch)

The Quantified Scientist
10 Aug 202411:01

Summary

TLDRIn this review, the CMF Watch Pro 2 is put to the test for its sports and health tracking capabilities. The reviewer struggles to access raw data, making a traditional analysis impossible. They resort to a qualitative assessment, comparing the watch's data with reference devices during outdoor and indoor cycling, weightlifting, and sleep tracking. The watch underperforms in heart rate tracking during outdoor cycling and weightlifting, with poor agreement between the two watches and the reference. Sleep stage tracking also shows limited agreement with the reference, leading to a lack of confidence in the watch's capabilities. Despite decent screen quality and responsiveness, the watch fails to impress as a reliable sports and health tracker.

Takeaways

  • 😤 The reviewer is extremely frustrated with the cmf watch Pro 2, stating it's a 'nightmare to review'.
  • ⏱️ The reviewer wasted two hours trying to understand the watch's features without success.
  • 📊 Lack of data access prevents the reviewer from making the usual quantitative analysis.
  • 🚴‍♂️ Heart rate tracking during outdoor cycling showed poor agreement with the reference device.
  • 🏋️‍♀️ Indoor cycling and weightlifting tests revealed some tracking issues, though slightly better than outdoor cycling.
  • 😴 Sleep stage tracking did not align well with the reference device, and there was little agreement between the two watches.
  • 📍 The watch's GPS functionality was unreliable and often failed to connect.
  • 💤 The watch accurately detected sleep and wake times but failed to track sleep stages effectively.
  • 📱 Despite poor sports and health tracking, the watch's screen and smart features are considered decent.
  • 💸 The reviewer suggests that for those seeking a sports or health tracker, older generation Fitbits or Huawei bands might be better value.
  • 👍 The reviewer encourages viewers to subscribe, comment, and like the video to support the channel.

Q & A

  • What was the reviewer's main issue with the cmf watch Pro 2?

    -The reviewer's main issue was that they could not extract the raw data from the watch, making it impossible to review its Sports and Health tracking features properly.

  • How did the reviewer plan to review the watch without raw data?

    -The reviewer planned to conduct a more qualitative review by comparing the data from the cmf Watch app with data from reference devices.

  • What activities did the reviewer use to test the watch's performance?

    -The reviewer used outdoor cycling, indoor cycling, weightlifting, and sleep tracking to test the watch's performance.

  • How did the cmf watch Pro 2 perform in heart rate tracking during outdoor cycling?

    -The watch showed poor agreement with the reference device, failing to detect the reviewer's maximum heart rate accurately.

  • What was the reviewer's experience with the watch's heart rate tracking during indoor cycling?

    -The watch performed slightly better during indoor cycling, detecting some of the heart rate patterns, but still with noticeable inaccuracies.

  • How accurate was the cmf watch Pro 2 in tracking heart rate during weightlifting?

    -The watch did not accurately track the peaks in heart rate during weightlifting, showing significant discrepancies compared to the reference device.

  • What was the reviewer's assessment of the watch's sleep stage tracking?

    -The reviewer found the sleep stage tracking to be unpromising, with only marginal agreement between the two watches and the reference device.

  • Did the reviewer encounter any issues with the watch's GPS functionality?

    -Yes, the reviewer faced issues with the GPS connectivity, which took a long time to connect and often failed to connect even in urban areas.

  • What did the reviewer suggest as an alternative to the cmf watch Pro 2 for Sports and Health tracking?

    -The reviewer suggested considering older generation Fitbit or a Xiaomi Mi Band as better value for money options for Sports and Health tracking.

  • What was the reviewer's overall opinion of the cmf watch Pro 2 as a smartwatch?

    -While the reviewer found the screen to be responsive and bright, they concluded that the watch was not a good health and sports tracker based on their testing.

  • What did the reviewer recommend for those interested in sleep or heart rate tracking?

    -The reviewer recommended checking out specific videos for top recommendations on sleep tracking and heart rate tracking devices.

Outlines

00:00

😓 Frustration with the cmf Watch Pro 2

The reviewer expresses strong dissatisfaction with the cmf Watch Pro 2, stating that it was a waste of time trying to understand its features. They found it particularly challenging to extract data from the watch for analysis, which is unusual as they typically enjoy this process. The watch's promised Strava integration failed to deliver, with no data appearing. Due to these issues, the reviewer could not perform a standard review and resorted to a qualitative assessment using the cmf Watch app and reference data. They tested the watch during various activities, including cycling and weightlifting, but were disappointed with the heart rate tracking accuracy, which did not align well with their reference device. The reviewer also mentions issues with the watch's GPS connectivity.

05:00

🚴‍♂️ Mixed Results in Tracking Performance

In this paragraph, the reviewer discusses the performance of the cmf Watch Pro 2 in tracking different activities. For indoor cycling, the watch showed some improvement in heart rate tracking compared to outdoor cycling, although it still missed some peaks and dips. The reviewer also attempted to test the watch during weightlifting but found that it failed to detect the expected heart rate peaks, suggesting poor performance in this area. They concluded that while the watch might be suitable for basic smartwatch functions due to its responsive screen, it does not excel as a health and sports tracker, especially when compared to other devices in a similar price range.

10:00

💤 Sleep and GPS Tracking Issues

The reviewer analyzes the cmf Watch Pro 2's sleep stage tracking capabilities and finds the results to be only marginally promising, with limited agreement between the two watches tested and the reference device. They note that while the watch can roughly detect sleep and wake times, its accuracy in identifying sleep stages is questionable. Additionally, the reviewer shares their frustration with the watch's GPS functionality, which they found to be slow and unreliable, even in urban environments with only moderate building obstructions. They suggest that potential buyers looking for reliable sports and health tracking might want to consider other options, such as older Fitbit models or Huawei bands, which offer better value for money.

Mindmap

Keywords

💡cmf watch Pro 2

The cmf watch Pro 2 is the central subject of the video, a smartwatch that the reviewer is attempting to evaluate. It is defined as a device that should integrate with various health and sports tracking features. The video's theme revolves around the difficulties the reviewer faced in using this watch, particularly in accessing raw data and its performance in tracking activities such as cycling and weightlifting.

💡Data Access

Data Access refers to the ability to retrieve information from a device, which is crucial for the reviewer to analyze the watch's performance. In the script, the reviewer expresses frustration with the cmf watch Pro 2's inability to provide raw data, which hinders a comprehensive review and is a significant issue as it prevents quantitative analysis.

💡Qualitative Analysis

Qualitative Analysis is a method of evaluation that is based on observations and interpretations rather than numerical data. The reviewer resorts to this method due to the inability to access raw data from the cmf watch Pro 2. It is used to compare the watch's data with reference devices, as shown in the script where the reviewer looks at data from the cmf Watch app side by side with reference data.

💡Heart Rate Tracking

Heart Rate Tracking is a feature that monitors the beats per minute (BPM) of a user's heart, which is essential for sports and health tracking. The video discusses the watch's performance in this area, noting significant discrepancies between the cmf watch Pro 2's readings and those of reference devices during outdoor cycling and weightlifting sessions.

💡Outdoor Cycling

Outdoor Cycling is a type of physical activity that the reviewer uses to test the watch's capabilities. It serves as a context to evaluate the watch's heart rate tracking feature. The script describes how the watch failed to accurately track heart rates during outdoor cycling sessions, showing poor agreement with the reference device.

💡Indoor Cycling

Indoor Cycling is another physical activity used for testing, typically considered easier for devices to track due to controlled environments. The reviewer notes that while the cmf watch Pro 2 performs slightly better in this setting, it still shows significant inaccuracies in heart rate tracking compared to the reference devices.

💡Weightlifting

Weightlifting is a strength training exercise that the reviewer includes in the test to assess the watch's ability to track heart rate changes during intense activity. The script indicates that the watch failed to detect expected heart rate peaks during weightlifting, suggesting poor performance in tracking high-intensity exercises.

💡Sleep Stage Tracking

Sleep Stage Tracking is the feature that monitors different phases of sleep, such as REM and deep sleep. The reviewer analyzes two nights of sleep data and finds that the cmf watch Pro 2 does not align well with the reference device, indicating unreliable sleep stage detection.

💡GPS Connectivity

GPS Connectivity is a feature that allows the watch to determine geographic location and track outdoor activities. The reviewer mentions experiencing difficulties with the cmf watch Pro 2's GPS, as it often failed to connect, even in urban environments with some obstructions, which questions its utility for many users.

💡Smartwatch

A Smartwatch is a category of wearable devices that offer computing and smartphone-like features. While the cmf watch Pro 2 is positioned as a smartwatch, the reviewer suggests that despite its decent screen quality and responsiveness, it falls short as a health and sports tracker, which is a significant drawback for its intended purpose.

💡Value for Money

Value for Money refers to the cost-effectiveness or worth of a product relative to its price. The reviewer concludes that other devices, like older generation Fitbit or a Whoop strap, offer better value for money in terms of health and sports tracking, suggesting that the cmf watch Pro 2 may not be the best investment for those seeking these features.

Highlights

Difficulty in understanding the cmf watch Pro 2's features after spending two hours.

Challenges in extracting data from the watch for analysis.

Lack of promised Strava integration and absence of data.

Inability to access raw data, affecting the comprehensiveness of the review.

Qualitative review approach due to lack of raw data.

Comparison of cmf Watch app data with reference data.

Heart rate tracking during outdoor cycling shows poor agreement with the reference.

Indoor cycling heart rate tracking shows slightly better results.

Weightlifting heart rate tracking does not detect expected peaks.

Forgetting the watch connected to the data collection device.

Poor agreement between the watches and the reference for sleep stage tracking.

Only marginal agreement between the two watches for sleep tracking.

GPS connectivity issues during workouts.

Recommendation to consider older generation Fitbit or a Whoop strap for better value.

The watch's screen is responsive and bright, a positive aspect.

Encouragement for viewers to subscribe, comment, and like the video.

Suggestion to check other reviewers for a broader perspective.

Transcripts

play00:00

I hate this watch I really really hate

play00:02

it I just wasted two hours of my life

play00:06

and none of that has got me any closer

play00:08

to understanding how good this watch

play00:09

actually is so better wording might be

play00:12

that the cmf watch Pro 2 is just a

play00:14

nightmare to review I normally love

play00:16

getting the data out of a new watch and

play00:18

seeing my computer code generator grass

play00:20

we need to test these watches for their

play00:21

Sports and Health tracking but that's

play00:23

just impossible for this watch they

play00:25

promis Trava integration but it just

play00:27

doesn't work at least no data appears

play00:29

for my two watches getting to the actual

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data these watches collect is something

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I haven't been able to manage but who

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knows maybe my personal monkey brain

play00:37

just wasn't able to figure out it out

play00:38

all of that means is that this review

play00:40

will be slightly different from my

play00:41

normal reviews in two ways first since

play00:43

I'm not going to be able to access the

play00:44

raw data which would normally allow me

play00:46

to make more quantitative plots like

play00:48

this and this instead it would be more

play00:51

qualitative meaning we'll just look at

play00:52

the data from The cmf Watch app side by

play00:54

side with the data from my references

play00:56

the second thing that is different is

play00:57

that I cannot justify spending a lot of

play00:59

time testing this watch when I cannot

play01:01

actually get the raw data out so first

play01:03

I'm going to use some cycling data I

play01:05

collected yesterday which we will look

play01:06

at now then I'll collect some more data

play01:08

during an indoor cycling test and

play01:10

weightlifting session right after this

play01:12

and we review that and finally our were

play01:13

both watches to bed last night and we'll

play01:15

do the same thing tonight and we'll have

play01:17

two nights of data to compare against

play01:19

the Sleep EG reference so let's get to

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it and as I said I want to start by

play01:23

looking at the heart rate tracking

play01:24

performance during outdoor cycling and I

play01:27

did two short cycling sessions and here

play01:29

you can see the result results for the

play01:30

first session on the top left we have

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the heart rate as recorded by the cmf

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watch Pro 2 on my left wrist on the

play01:36

bottom left here we have the results for

play01:38

the one on my right wrist and on the

play01:40

right here we have the reference heart

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rate which you assume to be correct and

play01:44

as you can see overall the patterns look

play01:46

quite different first of all we can in

play01:48

general see that there's very little

play01:50

detail in the heart rate recorded by the

play01:52

cmf watch Pro 2 there's a bit of

play01:54

deviation right here in the Middle where

play01:56

both of them detected a dip in my heart

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rate but as you can see over all even

play02:00

between the two watches the patterns

play02:02

look quite different in the beginning

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they are somewhat the same maybe but you

play02:07

can see for instance during this second

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part the one on my right wrist detected

play02:11

a much lower heart rate than the one on

play02:12

my left wrist and both of them were

play02:14

quite a bit lower than the reference so

play02:16

my maximum heart rate during this

play02:18

cycling session was about 160 170 BPM

play02:23

and the watches don't come close to that

play02:25

so overall this doesn't look very good

play02:27

so overall I'm not very happy with this

play02:29

there's not much agreement between the

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two watches and the two watches and the

play02:32

reference so very different results and

play02:34

here we have the results for the second

play02:36

cycling session where again I would say

play02:38

there's poor agreement with the

play02:39

reference ofice maybe there's a little

play02:42

bit better agreement between the two

play02:43

watches but even that isn't very good

play02:45

for instance right here the watch on my

play02:47

left wrist detected a peak in my heart

play02:49

rate which wasn't detected by the one on

play02:51

my right wrist maybe here in the middle

play02:53

we see the best agreement and this also

play02:54

looks somewhat similar to the reference

play02:56

device but overall very poor agreement

play02:59

again the maximum heart rate detected by

play03:01

the reference device is over 150 bpm and

play03:04

the Watch 2 never detected a heart rate

play03:06

even close to 150 bpm so overall not a

play03:10

first good sign but let's actually take

play03:11

a step back and make it a little bit

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easier for these watches let's look at

play03:15

cycling indoors I'm going to do a

play03:16

cycling session indoors now where

play03:18

watches generally have less trouble

play03:19

tracking my heart rate and as always my

play03:22

reference is the polar h10 ECG chest

play03:24

strap and I also have a second chest

play03:25

strap as a backup so let's see how these

play03:28

watches do for indoor cycling it's the

play03:30

next day now and I'm at work and I was

play03:32

hoping to look at the heart rate results

play03:33

for indoor cycling and weightlifting for

play03:35

these two guys but unfortunately I've

play03:37

forgot the watch that they are connected

play03:38

to so I cannot look at the results for

play03:40

my interval indoor cycling sessions the

play03:42

pattern should look something like this

play03:43

so with a lot of Peaks and also some

play03:45

valleys and for weight lifting we expect

play03:47

some Peaks like this where each time I

play03:48

did a set of exercises my heart rate

play03:50

increases so we'll now have to wait

play03:52

until I'm home to see how these watches

play03:54

actually did for indoor cycling and

play03:55

weightlifting I also considered having

play03:57

Rafel test these watches Rafel what

play04:00

would you say if I asked you to review

play04:01

and test one of these cmf watch Pro 2os

play04:04

they look cool no you're supposed to say

play04:07

they're ugly I hate them they're stupid

play04:09

no they're not ugly are they really bad

play04:12

so far yes I don't want to invest any

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more time I wouldn't want to waste your

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time then I don't want to test them

play04:20

please right answer there's the bin wow

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it's really SP okay I'm home now it's

play04:26

now time to look at the watches side by

play04:28

side with the reference and see if they

play04:30

did any better with these other

play04:31

exercises so cycling indoors and

play04:33

weightlifting let's take a look at my

play04:35

computer here and here we have the

play04:36

results for spinning with the reference

play04:38

on the right the watch on my left wrist

play04:40

on the top left and the one on my right

play04:42

wrist on the bottom left and as you can

play04:44

see this looks a little bit better than

play04:46

what we saw for cycling outside so we

play04:48

see some of the same patterns but we see

play04:50

for instance at the watch on the top

play04:52

left misses some of the dips here in the

play04:53

beginning and also a peak right here and

play04:56

also the watch on my right wrist shows

play04:58

some major defects we see missed a

play05:00

complete Peak right here also this peak

play05:02

was not completely tracked and here one

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of the dips was also missed so it does

play05:06

look a little bit better it's not

play05:08

complete nonsense what it's tracking but

play05:10

also not very good but let's take a look

play05:11

at weightlifting now and the results for

play05:13

weightlifting are right here with the

play05:15

reference on the right where each time I

play05:16

did a set of exercises I had a peak in

play05:18

my heart rate and as you can see neither

play05:20

of the watches really detected these

play05:22

Peaks they might have detected them a

play05:24

little bit but as you can see most of

play05:26

the time the peak in my heart rate was

play05:27

around 113 BPM and this was basically

play05:30

never reached by these watches there's

play05:32

this weird Peak right here in the

play05:33

beginning for the one on my right wrist

play05:35

but otherwise they never went over 100

play05:37

BPM so for weightlifting it isn't very

play05:40

good all right that really doesn't look

play05:42

good in terms of heart rate tracking for

play05:43

the cmf watch Pro 2 maybe for cycling

play05:46

indoors it's okay it detects quite a lot

play05:49

of the Peaks at least partially but for

play05:51

cycling outside and for weightlifting it

play05:53

doesn't look very promising again this

play05:55

is a very initial review I cannot get to

play05:57

R it and I don't want to spend the time

play05:58

on this watch if I can't but it will

play06:00

give you a first impression at least of

play06:01

the performance of this watch and please

play06:03

also compare to the first generation of

play06:05

the watch which I'll link up here but

play06:07

let's next take a look at sleeve stage

play06:08

tracking maybe this is a bit better

play06:10

again I cannot do this quantitatively

play06:12

but just qualitatively and I just

play06:14

analyzed the two last nights of data

play06:16

based on my EG reference on this Windows

play06:18

laptop right here a cheap one from

play06:20

Amazon so let's see how it did and here

play06:22

we have the first night I wanted to

play06:24

share with you now on the bottom here we

play06:26

have the reference device where you can

play06:27

see the sleep stages along the vertical

play06:29

a

play06:30

and the time along the horizontal axis

play06:32

and I tried to align the results for the

play06:34

two watches so the one on my right wrist

play06:36

here in the middle and the one on my

play06:37

left wrist on the left as good as I

play06:40

could with the reference device and as

play06:42

you can see there is some agreement so

play06:45

some of the deep sleep so slow wave

play06:47

sleep s SWS here detected by the

play06:49

reference device is also detected right

play06:51

here in Red by the two watches but it

play06:53

doesn't match that well honestly and you

play06:55

can also see there are quite some

play06:57

differences between the two watches some

play06:59

parts degree quite okay between the

play07:01

watches so here in the end for instance

play07:02

and here in the middle well you can also

play07:04

see that here in the beginning there's

play07:06

quite a big differences and also R sleep

play07:08

agreement which you can see in red right

play07:09

here according to the reference and in

play07:11

Gray right here according to the two

play07:13

watches this also doesn't look that good

play07:15

honestly there's some agreement so this

play07:18

second third and fourth R sleep segment

play07:20

detected by both watches somewhat

play07:22

overlap with the reference device but

play07:24

not perfectly and it also detects much

play07:26

less Ram sleep and a bit of extra Ram

play07:28

sleep right here for this one watch and

play07:29

right here for this watch so overall to

play07:32

me this doesn't look very promising but

play07:34

let's look at the second night the

play07:36

results for the second night are

play07:37

displayed right here with again the

play07:38

reference on the bottom the watch on my

play07:41

right wrist here in the middle and the

play07:42

one on my left wrist here on the top and

play07:44

as you can see again I would say there's

play07:46

only a marginal agreement let's first

play07:48

look at Ram sleep again in red according

play07:50

to the reference device we can see that

play07:52

the reference device detected 1 2 3 four

play07:55

five Ram sleep segments and these really

play07:57

don't seem to align very well with the

play07:59

sleep stages as detected by the two

play08:01

watches so the watches detected both one

play08:03

two three four Ram sleep segments and in

play08:06

position they also don't match very well

play08:08

at the reference device so at a start

play08:10

that already doesn't look very good now

play08:12

in terms of deep sleep we also don't see

play08:14

very good agreement we can see that the

play08:16

reference device mostly detected deep

play08:18

sleep here in the beginning of the night

play08:19

and this overlaps somewhat with the

play08:21

reference devices but not very good

play08:23

honestly and the watches also de quite a

play08:25

bit of deep sleep here in the middle and

play08:27

even near the end of the night a lot

play08:28

more than the reference device does so

play08:30

overall to me this doesn't look very

play08:32

promising and again there's also only

play08:34

marginal agreement between the two

play08:35

watches so if the two watches them s

play08:37

cannot agree I cannot trust their sleep

play08:40

stage tracking honestly the one thing I

play08:42

can say is good about the Sleep stage

play08:43

detection of these watches is that they

play08:45

detect about the same time I fell asleep

play08:47

and the same time I woke up so you could

play08:50

potentially use to detect your total

play08:51

time in bed but that's about it I

play08:54

wouldn't trust it to do anything else

play08:56

and that's not all we didn't discuss

play08:57

this yet but this watch also has GPS or

play09:00

at least it's supposed to have GPS I

play09:02

always tried to start my workout with

play09:04

GPS but it always took forever to

play09:07

connect and it basically never connected

play09:09

while I was waiting for it to connect

play09:11

and sometimes I waited for minutes yes

play09:13

there were some buildings around not

play09:15

super tall ones but some buildings at

play09:17

least but I always started them at the

play09:19

same place where I always do my testing

play09:21

and other watches have no problems there

play09:23

so I don't know what they want most

play09:24

people will do workouts inside the city

play09:26

as well and if it doesn't work for that

play09:28

why do we even have GPS in this watch

play09:30

and at R just doesn't have it at least

play09:32

that's my experience I just got super

play09:34

frustrated waiting for it to connect and

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in the end after a few minutes I just

play09:38

always gave up by the way I hope that my

play09:40

testing has earned a subscribed from you

play09:42

and also leaving a comment or liking

play09:44

this video really helps this channel now

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back to the testing as you might have

play09:48

guessed overall my experience with the

play09:50

Sports and Health tracking of the cmf

play09:52

watch Pro 2 just isn't very good I

play09:55

couldn't do a full review that isn't

play09:56

because I didn't want to make one I just

play09:58

wasn't able to get the data that I

play10:00

needed to do a quantitative analysis now

play10:03

looking Beyond health and sports

play10:04

tracking the watch in itself isn't bad

play10:06

the screen is pretty good it's

play10:08

responsive and bright enough so at least

play10:10

in that sense it's not bad at all and

play10:12

given the price it might make a decent

play10:14

Smartwatch it just isn't a good health

play10:16

and Sports Tracker at least on on me as

play10:18

always this testing is just on me so

play10:19

also check out some other reviewers now

play10:22

if you're in a market for a sports or

play10:23

health tracker and your budget isn't as

play10:25

high I would personally maybe buy an

play10:27

older generation Fitbit or a w hway band

play10:30

both of these are much better Sports and

play10:32

or health trackers and check out these

play10:34

videos up here now these are just two

play10:36

examples of health and sports trackers

play10:37

that are better value for money in my

play10:39

personal opinion if you're mostly

play10:41

interested in sleep tracking and sleep

play10:42

stage tracking check out this video

play10:44

right here for my top recommendations or

play10:46

if you're more into heart rate tracking

play10:48

check out this video right here if

play10:50

you're interested in anything else also

play10:52

check out my other videos down here

play10:53

thank you so much for watching and catch

play10:55

you in the next video

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関連タグ
Watch ReviewHealth TechData IssuesHeart Rate TrackingCycling AnalysisWeightlifting DataSleep Stage TrackingGPS ConnectivityProduct TestingUser Experience
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