Samsung Galaxy A21s (SM-A217F/DS 64GB/4GB) vs Xiaomi Redmi Watch (WT02)
Side by side comparison between Samsung Galaxy A21s vs Xiaomi Redmi Watch devices, differences, pros, cons and full specifications. What's the better?
,
6.5"
PLS
PLS
720x1600
48
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
What's the better device? Samsung Galaxy A21s (SM-A217F/DS 64GB/4GB)
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!
21 Advantages 
9 Advantages | 11 Common items in both devices |
| 64GB (48GB available) / Not supported |
| Plastic body, glass front |
| Capacitive |
| Multitouch |
| Accelerometer |
| Compass |
| Gyroscope |
| +4 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 A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Model | Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) |
| Other model names | Galaxy A21s SM-A217F/Dual-Sim (64GB + 4GB RAM) | Redmi Watch REDMIWT02, REDMI-WT02 (GPS) |
| Country or region available |         (Global, International), Angola, Saudi Arabia, Egypt, India, Morocco, Mozambique, Pakistan | India |
| Brand | Samsung | Xiaomi |
| Release date | 6/2/2020, Announced: 5/15/2020 | 5/13/2021 |
| Depth | 8.9 millimeters (0.35 inches) | 11.9 millimeters (0.47 inches) |
| Size (width x height) | 75.3 x 163.7 millimeters (2.96 x 6.44 in) | 35 x 41 millimeters (1.38 x 1.61 in) |
| Weight | 192 grams (6.72 ounces) | 22 grams (.77 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | 5 ATM: 50 meters waterproof |
📲 Display | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Display type | TFT PLS | TFT IPS LCD |
| Screen size | 6.5" inches | 1.4" inches |
| Screen-to-body ratio | ~82.8% (screen-to-body ratio) | ~44.1% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 320x320 pixels (1:1) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 270 PPI | 323 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | 350nits[typ] |
🤖 Operating System | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| System version | Android 10 | Proprietary OS |
| Firmware update | Android 12 | feature not registered |
| User Interface | One UI 2.0 / 3.1 / 4.1 | feature not registered |
⚙️ Processor | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Chipset | 64bit: Samsung Exynos 850 (8nm) | 32bit |
| CPU | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | ARM Mali-G52 MP1 | 3D GPU |
| Performance (benchmark) | AnTuTu: 124232 (v8) | feature not registered |
💽 Memory and storage | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| RAM memory | 4GB LPDDR4X | feature not registered |
| Internal storage | 64GB (48GB available) eMMC 5.1 | Not supported |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | Not supported |
| Maximum Download / Upload | 300/150 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 850/900/1900/2100 | Not supported |
| Primary 4G network | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Back camera (main camera) | (quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4 | Not supported |
| Main camera resolution | 8000x6000 pixels | Not supported |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Not supported |
| Flash | LED flash | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Only digital zoom | Not supported |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Front camera (secondary) | 13 megapixels | Not supported |
| Front camera resolution | 4128x3096 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Loudspeaker | Mono sound (not stereo) | feature not registered |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | feature not registered |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, eAAC+ |
🔌 Connectivity | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| USB | USB 2.0 Type-C reversible connector | Not supported |
| Audio output | 3.5mm jack | Not supported |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | Not supported |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Sensors | Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor | Accelerometer Barometer Compass Gyroscope Heart rate Pedometer |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5000 mAh | 230 mAh |
| Charger, watts | 15W (9V/1.67A) Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | Magnetic charging (dock) |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | 240 hours (10 days) |
➕ Other features | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Not supported |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, E-mail |
| Hands-free calling | Supported | Not supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | feature not registered |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | feature not registered |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White, Blue, Red | • Colors: Black, Blue, Ivory • Strap/bands: Black, Blue, Ivory, Olive • 2.5D curved display • Android/iOS compatible • Watch faces (+200) |
☢️ Radiation rate | ||
| Galaxy A21s (SM-A217F/DS 64GB/4GB) | Redmi Watch (WT02) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.422W/kg (head), 1.544W/kg (body) | feature not registered |