
Samsung Galaxy Watch4
- https://www.samsung.com/us/support/downloads/?model=N0054975&modelCode=SM-R870NZKAXAA
- https://www.gsmarena.com/samsung_galaxy_watch4-11045.php#44-mm
- update changelog: https://doc.samsungmobile.com/SM-R870/XAA/doc.html</https://doc.samsungmobile.com/SM-R870/XAA/doc.html>
model #: (your model #)
S/N: (your serial #)
wifi mac (your wifi mac)  
- 44mm model SM-R870 should be good for most people
- 40mm model might be better for tiny people (some Asian females, youths, etc.)
Koelin Silicone Fashion Band
- recommended watch band in online threads
- fits smaller wrists better than stock band
- more breathable and more flexible
- https://www.amazon.com/gp/product/B09KNQ682S?ref=ppx_pt2_dt_b_prod_image&tag=xdaforum01-20
Apps Needed on Phone
- should work on any brand phone
- Samsung Galaxy Wearable
- Samsung Galaxy Watch4 Plugin
- Samsung Health
- Wear OS by Google is NOT needed
Shop for Watch Apps
- non-Samsung watch faces do not support the full range of Samsung-specific "complications" such as health info
- "complications" are locations on watch faces that can be configured to contain various widgets/info, such as date, temperature, etc.
 https://play.google.com -> Shop -> Categories -> Watch apps
Boot to recovery
- press and hold both keys to reboot
- keep holding keys
- after reboot when logo appears release both keys and quickly press upper key 3 times
Developer Mode
Settings -> About Watch -> Software -> tap ‘Software version’ multiple times
ADB
- turn off Bluetooth in Settings -> Connections
- enable ADB and ADB wifi in Settings -> Developer Mode
- IP address will be displayed when connected
adb connect 192.168.0.60:5555 # 192.168.60.5555 is the watch id
- must accept the connection on the watch
- disable ADB when not in use (causes battery drain)
Unrestricted Samsung Health Monitor
- https://forum.xda-developers.com/t/restrictions-removed-samsung-health-monitor-wearos-1-1-1-171-root-age-country-device-restriction-removed-22nd-november-2021.4322527/
- install one mod on phone, one on watch
- mod is independent of OTA updates
- removes various restrictions including device, country, root detection, age, lock screen requirement, blood pressure and ECG, and update requirement
- online Samsung Health account sync doesn’t work with mod, so consider periodically exporting health info from app
Setup phone:
adb devices   # get phone id
adb -s <phone id> install Phone.WearOS.SHM.MOD.1.1.1.171.dante63.apk- download, extract SamsungHealth.zip
- copy to phone (must go in this location, never delete it):
adb -s <phone> push SamsungHealth /storage/emulated/0/Download/
- force stop Samsung Health, then open it, open Settings -> About Samsung Health -> tap on the version multiple times until ‘Set Features’ is enabled
- in ‘Set Features’ switch to DEV in ‘Health Analytics’, inside DataPlatform turn on Developer Mode.
- when exiting Set Features force stop Samsung Health, clear cache
Setup watch:
adb -s <watch id> install Watch4.SHM.MOD.1.1.0.185.dante63.apk
adb -s <watch id> shell pm uninstall -k --user 0 com.samsung.android.shealthmonitor- disable ADB when done (drains battery)
to restore original SHM:
adb -s <watch id> shell pm install-existing com.samsung.android.shealthmonitorGoogle Assistant Go
https://forum.xda-developers.com/t/official-list-of-sideloaded-apps-for-galaxy-watch-4-gw4.4379825/
- Google’s voice assistant
- some people prefer over Samsung Bixby
- to remove the blue bar at the bottom of the screen must temporarily lower the screen density (see below)
adb -s <watch id> install com.google.android.apps.assistant_2.8.0.346747673.armeabi-v7a.release-7002_minAPI26\(armeabi-v7a\)\(nodpi\)_apkmirror.com.apkGet rid of the bottom blue bar
- open Google Assitant Go on watch
adb -s <watch id> shell wm density # display the default display density (340) wm density 200 # makes text smaller, increases display spaceclick the text on the bottom right in the blue bar, then click through to next page. bar should never appear again. wm density reset # reset to default (340)
Functions
- Make quick phone calls on the go (“Call Nolan”)
- Send text messages (“Text Amanda I am running late”)
- Play music (“Play some renaissance lute music on YouTube”)
- Navigate places (“Get me directions to the nearest organic food store”)
- Store info ("When does Target on Main St. open?")
- Preview your upcoming events (“Tell me about my day”, "When is my next event?")
- Weather information (“Do I need an umbrella today?”, "What is the weather at (location)?")
- Answers (“How tall is the Saint Louis Arch?”)
- Calorie info ("How many calories in a quarter cup of black rice?")
- Cooking info ("How long to soak lentil beans?")
- Health info ("How many calories burned in two mile run?")
- Scientific info ("What are the group 2 elements in the periodic table?")
- Math ("What is 15% of 26.51?")
- Sci-fi ("How many races in the v-o-t-a-n-i-s collective?") unknown words must be spelled out
Debloat List
- https://forum.xda-developers.com/t/debloat-galaxy-watch-4.4324147/
- list of potential apps that could be uninstalled or disabled
- removing any of these, even ones that seem unimportant, can cause serious issues
pm uninstall -k --user 0 <app> com.samsung.sree # 'Global Goals' app com.samsung.android.watch.watchface.myphoto com.samsung.android.watch.watchface.mystyle com.samsung.android.watch.compass com.samsung.android.watch.weather com.samsung.android.messaging com.samsung.android.watch.watchface.basicclock com.samsung.android.bixby.agent com.samsung.android.watch.watchface.simpleclassic com.samsung.android.watch.watchface.dualwatch com.samsung.android.samsungpay.gear com.samsung.android.app.reminder com.samsung.android.watch.watchface.together com.samsung.android.watch.watchface.typography com.samsung.android.watch.watchface.large com.samsung.android.watch.watchface.animal com.google.android.apps.maps com.samsung.android.watch.watchface.aremoji com.samsung.android.watch.watchface.analogmodular com.samsung.android.watch.watchface.emergency com.samsung.android.watch.watchface.simpleanalogue com.google.android.apps.wearable.retailattractloop com.samsung.android.bixby.wakeup com.samsung.android.watch.watchface.bitmoji com.android.providers.userdictionary com.samsung.android.watch.watchface.superfiction com.samsung.android.watch.worldclock com.samsung.android.watch.watchface.endangeredanimal com.samsung.android.watch.watchface.analoguefont com.samsung.android.watch.worldclock com.samsung.android.watch.cameracontroller com.samsung.android.watch.watchface.simplecomplication com.samsung.android.watch.watchface.digitalfont com.samsung.android.watch.watchface.digitalmodular com.google.android.marvin.talkback com.samsung.android.wearable.music com.samsung.android.watch.watchface.weather com.samsung.android.watch.watchface.healthmodular com.samsung.android.watch.watchface.livewallpaper com.google.android.wearable.assistant com.samsung.android.watch.watchface.basicdashboard com.samsung.android.video.wearable
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