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Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820) vs Samsung Galaxy Watch Active 2 (44mm SM-R825U)

Side by side comparison between Galaxy Watch Active 2 (Aluminum 44mm SM-R820) vs Galaxy Watch Active 2 (44mm SM-R825U) smartwatches, differences, pros, cons and full specifications. What's the better?

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Compare Samsung Galaxy Watch Active 2 XSamsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)01Point
Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)
1.4"
AMOLED

360x360

N/A
MP

768MB
RAM

64bit Dual

340
mAh

(Non removable)

vs
05PointsSamsung Galaxy Watch Active 2 (44mm SM-R825U)Compare Samsung Galaxy Watch Active 2 X
Samsung Galaxy Watch Active 2 (44mm SM-R825U)
1.4"
AMOLED

360x360

N/A
MP

1.5GB
RAM

64bit Dual

340
mAh

(Non removable)

What's the better smartwatch? Samsung Galaxy Watch Active 2 (44mm SM-R825U)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!


29 Common items in both devices
1.15GHz 64bit Dual-Core
4GB (1.39GB available)
eMMC
10.9 millimeters (0.43 inches)
Super AMOLED
16 million
360x360 pixels
+22 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight

📱 Model features

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
ModelGalaxy Watch Active 2 (Aluminum 44mm SM-R820)Galaxy Watch Active 2 (44mm SM-R825U)
Other model namesGalaxy Watch Active2 SM-R820 (Bluetooth+WiFi Aluminium)Galaxy Watch Active2 4G LTE SM-R825U (Stainless Steel)
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungSamsung
Release date9/1/20199/1/2019
Depth10.9 millimeters (0.43 inches)10.9 millimeters (0.43 inches)
Size (width x height)44 x 44 millimeters (1.73 x 1.73 in)44 x 44 millimeters (1.73 x 1.73 in)
Weight30 grams (1.05 ounces)44 grams (1.54 ounces)
Build, materialsAluminum body, glass frontStainless steel body, glass front
Protection against water and others5 ATM: 50 meters waterproof.
MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
5 ATM: 50 meters waterproof.
MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.

🤖 Operating System

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
System versionTizen 4.0Tizen 4.0
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Chipset64bit - Samsung Exynos 9 Dual 9110 (10nm)64bit - Samsung Exynos 9 Dual 9110 (10nm)
CPUDual-Core, 1 processor:
1.15GHz Dual-Core ARM Cortex-A53
Dual-Core, 1 processor:
1.15GHz Dual-Core ARM Cortex-A53
GPU graphical controllerARM Mali-T720 MP1ARM Mali-T720 MP1
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
RAM memory768MB LPDDR31.5GB LPDDR3
Internal storage4GB (1.39GB available)
eMMC
4GB (1.39GB available)
eMMC
External storageNot supportedNot supported

📲 Display

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Display typeSuper AMOLEDSuper AMOLED
Screen size1.4" inches1.4" inches
Screen-to-body ratio~32.7% (screen-to-body ratio)~32.7% (screen-to-body ratio)
Display resolution360x360 pixels (1:1)360x360 pixels (1:1)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)364 PPI364 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass DX+Gorilla Glass DX+
Display featuresNot supportedNot supported

📶 Mobile networks

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Dual-SIMNot supportedNot supported
SIM cardNot supported1 slot (Single-SIM)
e-SIM (Eletronic)
Maximum download/uploadfeature not registered150/50 Mbps
Network technologyfeature not registered2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM MHz bandNot supportedQuad-Band 850/900/1800/1900
Primary 2G networkNot supportedGSM 850/900/1800/1900
Primary 3G networkNot supportedUMTS 850/900/2100
Primary 4G networkNot supportedLTE Cat4 (1, 3, 5, 7, 8, 20)
Primary 5G networkNot supportedNot supported
Primary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported

📷 Camera

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Back camera (main camera)Not supportedNot supported
Main camera resolutionNot supportedNot supported
Video recording (primary)Not supportedNot supported
FlashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusNot supportedNot supported
Touch focusNot supportedNot supported
Image stabilizationNot supportedNot supported
ZoomNot supportedNot supported
Face/smile detectionNot supportedNot supported
BSI sensorNot supportedNot supported
HDRNot supportedNot supported
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Front camera (secondary)Not supportedNot supported
Front camera resolutionNot supportedNot supported
Video recording (secondary)Not supportedNot supported
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
LoudspeakerSupportedSupported
Active noise cancellationNot supportedNot supported
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4MP4
Audio formatsMP3, WAV, WMA, OGG, eAAC+MP3, WAV, WMA, OGG, eAAC+

🔌 Connectivity

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
USBNot supportedNot supported
Audio outputNot supportedNot supported
TV outputNot supportedNot supported
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 b/g/n (2.4Ghz)802.11 b/g/n (2.4Ghz)
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
SensorsAccelerometer
Ambient Light sensor
Barometer
Heart rate
Pedometer
Accelerometer
Ambient Light sensor
Barometer
Heart rate
Pedometer
VO2 max
Vibrating alertSupportedSupported

🔋 Battery

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Battery typeLi-Ion: Lithium-Ion (Non removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity340 mAh340 mAh
Charger, watts Standard charging
Qi wireless charging
Standard charging
Qi wireless charging
Talk time autonomy60 hours (2.5 days)60 hours (2.5 days)
Standbyfeature not registeredfeature not registered

➕ Other features

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingNot supportedNot supported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserNot supportedNot supported
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous- Colors: Black, Silver, Pink Gold
- Bands: 20mm
- Always-on display
- Samsung Pay
- Colors: Black, Silver, Pink Gold
- Bands: 20mm
- Always-on display
- Samsung Pay

☢️ Radiation rate

Samsung Galaxy Watch Active 2 (Aluminum 44mm SM-R820)Samsung Galaxy Watch Active 2 (44mm SM-R825U)
SAR 1.6W/kg (USA, Mexico, etc.)0.17W/kg (head), 0.16W/kg (body)0.64W/kg (head), 2.19W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.057W/kg (head), 0.153W/kg (body)feature not registered
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