| Physical features | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Model | Redmi Watch (WT02) | S5 (32GB) |
| Other model names | Redmi Watch REDMIWT02, REDMI-WT02 (GPS) | 联想S5, Lenovo S5 3GB RAM + 32GB PABX0000CN, PABX0001CN |
| Country or region available | 
India |  
China, Hong Kong |
| Brand | Xiaomi | Lenovo |
| Release date | May, 2021 | March, 2018 |
| Depth | 11.9 millimeters (0.47 inches) | 7.8 millimeters (0.31 inches) |
| Size (width x height) | 35 x 41 millimeters (1.38 x 1.61 in) | 73.5 x 154 millimeters (2.89 x 6.06 in) |
| Weight | 22 grams (.77 ounces) | 155 grams (5.43 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | Plastic body, glass front | Aluminum body, glass front |
| Protection against water and others | 50 meters waterproof | Not supported |
| System (OS) | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Operating system | Proprietary OS | Android 8.0 Oreo |
| Firmware update | feature not registered | feature not registered |
| Hardware | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Chipset | 32bit | 64bit - Qualcomm Snapdragon 625 MSM8953 (14nm) |
| CPU processor | Single-Core | 2Ghz Octa-Core ARM Cortex-A53 |
| GPU graphical controller | 3D GPU | Qualcomm Adreno 506 650Mhz |
| RAM memory | feature not registered | 3GB LPDDR3 |
| Internal storage | Not supported | 32GB (22GB available)
eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot) |
| Display | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 1.4" inches | 5.7" inches |
| Screen-to-body ratio | ~44.1% (screen-to-body ratio) | ~74.1% (screen-to-body ratio) |
| Display resolution | 320x320 pixels (1:1) | 1080x2160 pixels (18:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 323 PPI | 424 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Display features | 350 nits | 60Hz |
| Mobile networks | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot) |
| SIM card | Not supported | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | feature not registered | 300/100 Mbps |
| Network technology | feature not registered | 2G, 3G, 4G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM Mhz band | Not supported | Quad-Band 850/900/1800/1900 |
| Primary 2G network | Not supported | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | TD-SCDMA 1900/2000
UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | LTE Cat7 (1, 3, 5, 7, 8)
TD-LTE (34, 38, 39, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | Not supported | GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
| Calling | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Messaging | SMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Not supported | Supported |
| Video calling | Not supported | Supported |
| Call control | Not supported | Voice dialing, Voice recorder |
| Camera | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Back camera (main camera) | Not supported | (dual camera)
13 megapixels
13MP mono |
| Main camera resolution | Not supported | 4128x3096 pixels |
| Video recording (primary) | Not supported | 4K UHD (3840x2160) 30 fps |
| Flash | Not supported | Dual-LED flash |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| 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 | PDAF: phase detection autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Not supported | Only digital zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | HDR photo on both cameras |
| 2ª camera | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Front camera (secondary) | Not supported | 16 megapixels |
| Front camera resolution | Not supported | 4608x3456 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Multimedia | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | feature not registered | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
| Connectivity | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| USB | Not supported | USB 2.0 Type-C, USB OTG On-The-Go |
| TV output | Not supported | USB Type-C (reversible) |
| Audio output | Not supported | 3.5mm jack |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | Not supported | 802.11 a/b/g/n (2.4Ghz, 5Ghz) |
| DLNA | Not supported | Not supported |
| NFC | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| Infrared port | Not supported | Not supported |
| Other functions | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Active noise cancellation | Not supported | Supported |
| Vibrating alert | Supported | Supported |
| Ringtones | feature not registered | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Compass
Gyroscope
Barometer
Heart rate
Pedometer
| Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Fingerprint sensor
|
| Other features | - Colors: Black, Blue, Ivory
- Strap/bands: Black, Blue, Ivory, Olive
- 2.5D curved display
- Android/iOS compatible
- Watch faces (+200) | - Colors: Midnight Black, Flame Red
- 2.5D glass screen
- ZUI 3.7
- WiFi direct, hotspot |
| Power supply | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 230 mAh | 3000 mAh |
| Charger, watts | Standard charging
Magnetic charging (dock) | 15W (5V/3A) Fast battery charging
Quick Charge 3 |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | 14400 minutes | 240 hours | 10 days | feature not registered |
| Radiation rate | Xiaomi Redmi Watch (WT02) | Lenovo S5 (32GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |