Galaxy Watch Active 2 Features - (SpO2) - Measure Blood Oxygen

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adfree

Senior Member
Jun 14, 2008
9,730
5,787
Samsung Galaxy Watch 4
Only news...

Samsung is working on new Firmware...

No idea if new Watch Face and more Bugs... or maybe Bloodoxygen feature added...

No idea when we will see Release...

Best Regards
 

73sydney

Senior Member
DeadHorseClaymation.gif
 

adfree

Senior Member
Jun 14, 2008
9,730
5,787
Samsung Galaxy Watch 4
R820XXU1EUK2/R820OXA1EUK2

Is public online for XAR and KOO...

Not tested yet...

But looks good to me... I have chance for root access... in theory...

Need some time to test in real...

Best Regards
 

pedromms86

Senior Member
Mar 21, 2013
185
50
R820XXU1EUK2/R820OXA1EUK2

Is public online for XAR and KOO...

Not tested yet...

But looks good to me... I have chance for root access... in theory...

Need some time to test in real...

Best Regards
Build Number : R820XXU1EUK2
Tizen version : Tizen 5.5.0.2
Release Date : 2021-11-15
• Watch faces
- Support the new Watchfaces
• Exercise
- Support Group Challenge Widget in watch
- Provide more accurate calorie consumption levels based on HR (Except swimming)
• Detect falls
- More falls will be detected, but other activity may also be detected as falls.
• Calendar
- Increase the calendar synchronization period from 3 months to 1 year
 

Mahmoudalselesly

New member
Nov 23, 2021
2
0
R820XXU1EUK2/R820OXA1EUK2

Is public online for XAR and KOO...

Not tested yet...

But looks good to me... I have chance for root access... in theory...

Need some time to test in real...

Best Regards
Have you figured out how to enable oxygen blood saturation in active 2,?
I heard about face watch that has spo2 whats the name of it
 

lulibuli

Member
Jan 20, 2011
32
1
With this version, my call loudnes is lower then before. There is no difference if i adjust loudnes to 6 or 1 when talking.
Music loudnes is much louder, that means that speaker is ok. I did factory reset, but no difference.
Any advice?
 
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Omegared37

Member
Mar 29, 2016
30
4
Eventually, after the Iranian government's reluctance to not buy the vaccine on time, I also contracted corona virus, and according to my doctor's advice, I had to check my blood oxygen level regularly, and I had to pay $ 30 to buy a separate device. This post is a reminder that Samsung could have simply added the ability to measure blood oxygen to the Active2 watch with an update, but it did not.
Hamid, be aware that SpO2 sensors on watches may not be as accurate as those on medical devices. Again, the GWA2 does measure VO2 which is not the same as SpO2. Finally, as far as I know, the GWA2 only has two photodiodes, one green for heart rate and other red. A pulse oximeter needs two diodes, one red and other infra red.
 

danergo

Senior Member
Sep 14, 2017
71
10
Hi! Little interesting detail: in service menu I find references for both green, red and ir LEDs on my Active2:
 

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danergo

Senior Member
Sep 14, 2017
71
10
With this version, my call loudnes is lower then before. There is no difference if i adjust loudnes to 6 or 1 when talking.
Music loudnes is much louder, that means that speaker is ok. I did factory reset, but no difference.
Any advice?
Mine is the same. Have you found any solution for this yet?
 

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  • 4
    I hope someone smarter than me can crack this problem and spread the fix to make SPO2 sensor work on Active2 Watch. Samsung is acting like *ssholes to block this good feature just to sell more expensive (and heavy) Watch3. This feature could be valuable to detect sleep apnea and low SP02 in Covid-19 virus cases.
    3
    Tiny correction.

    We removed few Security "locks" to make Blood Oxygen "visible"...
    But Measurement NOT work yet.

    Best Regards
    2
    I had previously left this issue in the form of a comment Here, but I think that considering solved the issue of BP/ECG, it is better to have a separate thread for this issue.

    It may have been forgotten, but according to previous samsung's announcements about regarding the ending of the ability to measure blood oxygen in the previous phone models, Samsung uses a blood oxygen sensor to measure stress level right now whether on cell phones with this sensor or on the galaxy watch /GW active/GW active2 / or other Models.
    So we can be sure that this sensor is already embedded on the watches!
    another reason is the measurement of blood pressure by the watch because the method of measuring blood pressure is obtained by combining the measurement of heart rate and blood oxygen with special formulas based on my research!
    So it is clear that "samsung" will not enable this feature right now (or maybe never) (Remember: like enablting touch bezel on galaxy watch Active!) to sell more galaxy watch 3 !
    because in the galaxy watch active 2 sales advertisements, there was no claim by Samsung to measure the amount of oxygen in the blood, and only the ECG was mentioned that now launched!
    From now on, friends who are active in this field may be able to port this feature to galaxy watch/GW active/GW active 2/other models/ by extracting related files and create moded shealth tpk or creating a moded ROM.
    I hope and thank them in advance for their efforts
    sorry for bad english because i am from "iran" that NOT Terorist :laugh: just oppressed :(
    2
    I hope so, quickly I will change the rom on it, cause now I have LTE on, EPP on ECG on SPay on and I need also SPo2 on
    I once read an article on reddit saying that Sp02 sensor Active 2 weaker than Watch 3 Therefore, Samsung has not enabled the Sp02 feature
    2

    AFE4920 versus AFE4930

    This is 1 reason why it not work on GWA2...

    And remember ECG was disabled before Tizen 4.0.0.8 Firmwares...
    Sams.ng spend enough time to crippled/block/kastriert/removed/disabled Driver Support...

    Only as tiny info...

    Best regards