GW4: Difference between revisions

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(Created page with "{{DISPLAYTITLE:Samsung Galaxy Watch 4}} The Samsung Galaxy Watch 4 (LTE) is a round smartwatch that is one of the first ones to contain a bioelectrical impedance analysis (BIA) sensor. {{Short description|Smartwatch developed by Samsung Electronics}} {{Infobox smartwatch | references = <ref name=":1"/><ref name=":2"/> | name = Samsung Galaxy Watch 4 | codename = | logo = | logosize = | image = | imagesize = | alt = | caption = | brand = Samsung Galaxy | manu...")
 
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The Samsung Galaxy Watch 4 (LTE) is a round smartwatch that is one of the first ones to contain a bioelectrical impedance analysis (BIA) sensor.
The Samsung Galaxy Watch 4 (LTE) is a round smartwatch that is one of the first ones to contain a bioelectrical impedance analysis (BIA) sensor.


{{Short description|Smartwatch developed by Samsung Electronics}}
{| class="wikitable"
{{Infobox smartwatch
|+ Samsung Galaxy Watch 4
| references = <ref name=":1"/><ref name=":2"/>
|-
| name = Samsung Galaxy Watch 4
| Model number || SM-R860, SM-R870, SM-R880, SM-R890 (Wi-Fi only), SM-R865U, SM-R875U, SM-R885U, SM-R895U (USA, LTE model), SM-R895F (Int., LTE model)
| codename =
|-
| logo =
| Memory || 1.5 GB
| logosize =
|-
| image =
| Storage || 16 GB
| imagesize =
|-
| alt =
| SoC || Exynos W920 dual core 1.18 GHz; GPU: Mali-G68
| caption =
|-
| brand = [[Samsung Galaxy]]
| Sensors ||  
| manufacturer = [[Samsung Electronics]]
* Heart rate monitor
| series = [[Samsung Galaxy Watch series]]
* Bioelectrical Impedance Analysis
| modelnumber = SM-R860, SM-R870, SM-R880, SM-R890 (Wi-Fi only), SM-R865U, SM-R875U, SM-R885U, SM-R895U (USA, LTE model), SM-R895F (Int., LTE model)
* Accelerometer
| released = {{Start date and age|2021|8|27|df=no}}
* Gyroscope
| available =
* Barometer
| unitssold =
|-
| predecessor = [[Samsung Galaxy Watch 3]]<br>[[Samsung Galaxy Watch Active 2]]
| Battery || Non-removable 247mAh / 361mAh
| successor = [[Samsung Galaxy Watch 5]]
|}
| related =
 
| type = [[Smartwatch]]
=== Miscellaneous hardware docs ===
| form =
 
| weight =
==== Manually getting into Download or Recovery Mode ====
| memory = 1.5 GB [[Random Access Memory|RAM]]
Press and hold both buttons until the "Rebooting..." screen appears. Release both buttons and press the power button (red outline) 3 times.
| storage = 16 GB
 
| battery = *Non-removable 247mAh (1.2"), 361mAh (1.4")<br/>
The reboot menu should be displayed. Press the power button to cycle between the options and confirm the selection with a long press (3 seconds).
*[[Qi (standard)|Qi wireless charging]]
 
| cpu = [[Exynos]] W920 [[Multi-core processor|dual core]] 1.18 G[[hertz|Hz]]; GPU: Mali-G68
==== Skipping initial setup ====
| size =
The pairing and setup of the watch can be skipped by pressing and holding down the Wear OS logo on the pairing screen.
| soc =
 
| os = [[Wear OS|Wear OS 4]] with [[One UI|One UI Watch 5]]
==== Debugging and Jigs ====
| rear_camera =
The device probably exposes a UART via the USB pads if ID is connected to GND with a 619k resistor, similar to the [[WC1]]. This is currently untested.
| front_camera =
| ext_display = [[Always On Display]]
| memory_card =
| display = *{{convert|1.2|in|mm|0|abbr=on}} [[AMOLED display|Super AMOLED]] [[capacitive display]], 396×396 pixels, 16 M colours, ~330 [[pixel density|ppi density]], 1:1 [[aspect ratio]]
*{{convert|1.4|in|mm|0|abbr=on}} [[AMOLED display|Super AMOLED]] [[capacitive display]], 450×450 pixels, 16 M colours, ~330 [[pixel density|ppi density]], 1:1 [[aspect ratio]]
*digital touch bezel or physical rotating bezel (classic)
* glass front ([[Gorilla Glass|Gorilla Glass DX+]]) (Galaxy Watch 4) ([[Gorilla Glass|Gorilla Glass DX+]]) (Galaxy Watch 4 Classic)
| connectivity =  
| sound =  
| input = *[[Heart rate monitor]]<br/>
*[[Bioelectrical Impedance Analysis]]
* [[Accelerometer]]
*[[Gyroscope]]
*[[Barometer]]
*Natural language commands & dictation
| networks = [[2G]], [[3G]], [[4G]]
| website = [https://www.samsung.com/us/watches/galaxy-watch4/ Official Website]
}}

Latest revision as of 12:14, 21 December 2023


The Samsung Galaxy Watch 4 (LTE) is a round smartwatch that is one of the first ones to contain a bioelectrical impedance analysis (BIA) sensor.

Samsung Galaxy Watch 4
Model number SM-R860, SM-R870, SM-R880, SM-R890 (Wi-Fi only), SM-R865U, SM-R875U, SM-R885U, SM-R895U (USA, LTE model), SM-R895F (Int., LTE model)
Memory 1.5 GB
Storage 16 GB
SoC Exynos W920 dual core 1.18 GHz; GPU: Mali-G68
Sensors
  • Heart rate monitor
  • Bioelectrical Impedance Analysis
  • Accelerometer
  • Gyroscope
  • Barometer
Battery Non-removable 247mAh / 361mAh

Miscellaneous hardware docs

Manually getting into Download or Recovery Mode

Press and hold both buttons until the "Rebooting..." screen appears. Release both buttons and press the power button (red outline) 3 times.

The reboot menu should be displayed. Press the power button to cycle between the options and confirm the selection with a long press (3 seconds).

Skipping initial setup

The pairing and setup of the watch can be skipped by pressing and holding down the Wear OS logo on the pairing screen.

Debugging and Jigs

The device probably exposes a UART via the USB pads if ID is connected to GND with a 619k resistor, similar to the WC1. This is currently untested.

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