Samsung Galaxy Watch Active 2 (40mm SM-R835F) vs Xiaomi Amazfit Stratos 2S
Side by side comparison between Samsung Galaxy Watch Active 2 vs Xiaomi Amazfit Stratos 2S smartwatches, differences, pros, cons and full specifications. What's the better?
,
1.2"
AMOLED
AMOLED
360x360
N/A
1.5GB
RAM
RAM
Dual-core
247
mAh
mAh
(Non removable)
vs
1.34"
TFT
TFT
320x300
N/A
512MB
RAM
RAM
Dual-core
290
mAh
mAh
(Non removable)
What's the better smartwatch? Samsung Galaxy Watch Active 2 (40mm SM-R835F)
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!
16 Advantages 
6 Advantages | 14 Common items in both devices |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Barometer |
| Heart rate |
| Pedometer |
| +7 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Model | Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S |
| Other model names | Galaxy Watch Active2 4G LTE SM-R835U (Stainless Steel) | Xiaomi Huami Amazfit 2 Stratos A1619, Amazfit Pace 2 |
| Country or region available |  (Global, International) |  (Europe) |
| Brand | Samsung | Xiaomi |
| Release date | 9/1/2019, Announced: 8/5/2019 | 12/12/2017 |
| Depth | 10.9 millimeters (0.43 inches) | 15 millimeters (0.59 inches) |
| Size (width x height) | 40 x 40 millimeters (1.57 x 1.57 in) | 25.4 x 51 millimeters (1 x 2.01 in) |
| Weight | 37 grams (1.3 ounces) | 68 grams (2.38 ounces) |
| Build, materials | Stainless steel body, glass front | Plastic body with ceramic and stainless steel, glass front |
| Protection against water and others | 5 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 |
📲 Display | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 1.2" inches | 1.34" inches |
| Screen-to-body ratio | ~29% (screen-to-body ratio) | ~44.6% (screen-to-body ratio) |
| Display resolution | 360x360 pixels (1:1) | 320x300 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 424 PPI | 327 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Gorilla Glass DX+ | Sapphire Glass |
| Refresh rate | feature not registered | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| System version | Tizen 4.0 | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Chipset | 64bit: Samsung Exynos 9110 (10nm) | 32bit: Ingenic M200S |
| CPU | Dual-core, 1 processor: 2x 1.15GHz ARM Cortex-A53 (Dual-core) | Dual-core, 2 processors: 1x 1.2GHz XBurst-HP (Single-core) 1x 300MHz XBurst-LP (Single-core) |
| GPU graphical controller | ARM Mali-T720 MP1 (667MHz) | 3D GPU |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| RAM memory | 1.5GB LPDDR4 | 512MB LPDDR2 |
| Internal storage | 4GB (1.39GB available) eMMC 5.1 | 4GB (2GB available) eMCP |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) e-SIM (Eletronic) | Not supported |
| Maximum Download / Upload | 150/50 Mbps | feature not registered |
| Network technology | 2G, 3G, 4G | feature not registered |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Not supported |
| Primary 2G network | GSM 850/900/1800/1900 | Not supported |
| Primary 3G network | UMTS 850/900/2100 | Not supported |
| Primary 4G network | LTE Cat4 (1, 3, 5, 7, 8, 20) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | Not supported |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Back camera (main camera) | Not supported | Not supported |
| Main camera resolution | Not supported | Not supported |
| Video recording (primary) | Not supported | Not supported |
| Flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Not supported |
| Touch focus | Not supported | Not supported |
| Image stabilization | Not supported | Not supported |
| Zoom | Not supported | Not supported |
| Face/smile detection | Not supported | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Front camera (secondary) | Not supported | Not supported |
| Front camera resolution | Not supported | Not supported |
| Video recording (secondary) | Not supported | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 1 microphone | Not supported |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4 | feature not registered |
| Audio formats | MP3, WAV, WMA, OGG, eAAC+ | MP3, eAAC+ |
🔌 Connectivity | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| USB | Not supported | MicroUSB 2.0 |
| Audio output | Not supported | Not supported |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Sensors | Accelerometer Ambient light sensor Barometer Heart rate Pedometer | Accelerometer Ambient light sensor Barometer Compass Gyroscope Heart rate Pedometer |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 247 mAh | 290 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Qi wireless charging | feature not registered |
| Talk time autonomy | 43 hours (1.8 days) | 30 hours (1.3 days) |
| Standby | feature not registered | 120 hours (5 days) |
➕ Other features | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| Call control | Voice dialing, Voice recorder, Voice commands | Not supported |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Not supported |
| Ringtones | Polyphonic and customized | feature not registered |
| Web browser | Not supported | Not supported |
| Antenna | Internal antenna | feature not registered |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Silver, Pink Gold • Bands: 20mm • Always-on display • Samsung Pay | • Colors: Black • Leather watch band • 22mm standard watch band • 2.5D glass display • Dock charger included • Always-on display • Languages: Chinese, English, Spanish • Mi Fit app compatible • Compatible with Android 4.4, iOS 9 and above |
☢️ Radiation rate | ||
| Galaxy Watch Active 2 (40mm SM-R835F) | Amazfit Stratos 2S | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.255W/kg (head), 1.528W/kg (body) | feature not registered |