Compare / Xiaomi Watch S4 41mm vs Xiaomi 18 Pro
Xiaomi Watch S4 41mm vs Xiaomi 18 Pro
A side-by-side comparison of the Xiaomi Watch S4 41mm and the Xiaomi 18 Pro, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
Xiaomi Watch S4 41mm
- Technology
- No cellular connectivity
- 2G bands
- N/A
- 3G bands
- N/A
- 4G bands
- N/A
- GPRS
- No
- EDGE
- No
Xiaomi 18 Pro
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
- 4G bands
- 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
- 5G bands
- 1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA
- Speed
- HSPA, LTE, 5G
Xiaomi Watch S4 41mm
- Announced
- 2025, June 26
- Status
- Available. Released 2025, June 26
Xiaomi 18 Pro
- Announced
- 2026, September 23
- Status
- Available. Released 2026, September 23
Xiaomi Watch S4 41mm
- Dimensions
- 41.2 x 41.2 x 9.5 mm (1.62 x 1.62 x 0.37 in)
- Weight
- 32 g (1.13 oz)
- Build
- Stainless steel bezel and frame
- SIM
No
Waterproof (5ATM)
Xiaomi 18 Pro
- Dimensions
- 151.8 x 72 x 8.5 mm (5.98 x 2.83 x 0.33 in)
- Weight
- 203 g or 208 g (7.16 oz)
- Build
- Glass front (Dragon Crystal Glass 3), aluminum frame
- SIM
Nano-SIM + Nano-SIM
IP68 dust tight and water resistant (immersible up to 6m for 30 min)
Xiaomi Watch S4 41mm
- Type
- AMOLED, 1500 nits (HBM), 2200 nits (peak)
- Size
- 1.32 inches
- Resolution
- 466 x 466 pixels (~320 ppi density)
- Protection
- Scratch/drop-proof glass
Xiaomi 18 Pro
- Type
- LTPO AMOLED68B colors2160Hz PWM120HzDolby VisionHDR VividHDR10+BT.20204000 nits (peak)
- Size
- 6.4 inches, 100.3 cm2 (~91.8% screen-to-body ratio)
- Resolution
- 1120 x 2436 pixels, 19.5:9 ratio (~419 ppi density)
- Protection
Xiaomi Dragon Crystal Glass 3
Secondary display (on the back):
LTPO AMOLED, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak)
2.7 inches, 596 x 976 pixels
Xiaomi Watch S4 41mm
- OS
- HyperOS 2
Xiaomi 18 Pro
- OS
- Android 17, HyperOS 4
- Chipset
- Qualcomm Snapdragon 8 Elite Gen 6 (2 nm)
- CPU
- Octa-core (up to 5 GHz)
- GPU
- Adreno
Xiaomi Watch S4 41mm
- Card slot
- No
- Internal
- Unspecified
Xiaomi 18 Pro
- Card slot
- No
- Internal
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.1
Xiaomi Watch S4 41mm
Not listed for this device
Xiaomi 18 Pro
- Triple
200 MP, f/1.7, 23mm (wide), 1/1.28", 0.61µm, dual pixel PDAF, OIS
200 MP, f/2.4, 75mm (periscope telephoto), 1/1.56", PDAF (10cm - ∞), OIS, 3.2x optical zoom
50 MP, f/2.4, 17mm, 102˚ (ultrawide), 1/2.88", 0.61µm, PDAF
- Features
- Laser AFcolor spectrum sensorLeica lensDual-LED dual-tone flashHDRpanorama
- Video
- 8K@30fps (HDR), 4K@30/60/120fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS
Xiaomi Watch S4 41mm
Not listed for this device
Xiaomi 18 Pro
- Single
- 50 MP, f/2.2, 21mm (wide), 1/2.88", 0.61µm, PDAF
- Features
- HDR, panorama
- Video
- 4K@30/60fps, 1080p@30/60fps, HDR10+, gyro-EIS
Xiaomi Watch S4 41mm
- Loudspeaker
- Yes
- 3.5mm jack
- No
Xiaomi 18 Pro
- Loudspeaker
- Yes, with stereo speakers (with Dolby Atmos)
- 3.5mm jack
No
24-bit/192kHz Hi-Res & Hi-Res wireless audio
Snapdragon sound
Xiaomi Watch S4 41mm
- WLAN
- No
- Bluetooth
- 5.4, A2DP, LE
- Positioning
- GPS, GLONASS, GALILEO, BDS, QZSS
- NFC
- Yes (market/region dependent)
- Radio
- No
- USB
- No
Xiaomi 18 Pro
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
- Bluetooth
- 6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
- Positioning
- GPS (L1+L5)BDS (B1I+B1c+B2a)GALILEO (E1+E5a)QZSS (L1+L5)NavIC (L5)GLONASS
- NFC
- Yes
- Infrared port
- Yes
- Radio
- No
- USB
- USB Type-C 3.2, Display Port, OTG
Xiaomi Watch S4 41mm
- Sensors
- Accelerometergyrocompassbarometerheart rateSpO2thermometer (skin temperature)
Xiaomi 18 Pro
- Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Ultra Wideband (UWB) support
Xiaomi Watch S4 41mm
- Type
- Li-Po 320 mAh
Xiaomi 18 Pro
- Type
- Si/C Li-Ion 7000 mAh
- Charging
100W wired, PD3.0, QC3+, 100W PPS
50W wireless
27W reverse wireless
Xiaomi Watch S4 41mm
- Colors
- Black, Green, White, Gold
- Models
- M2502W1
- Price
- About 120 EUR
Xiaomi 18 Pro
- Colors
- Black, White, Pink, Red, Blue
- Price
- About 790 EUR
Xiaomi Watch S4 41mm
- No
Xiaomi 18 Pro
Not listed for this device
How the Xiaomi Watch S4 41mm and Xiaomi 18 Pro differ
- The Xiaomi 18 Pro has a larger battery, 7000 mAh against 320 mAh on the Xiaomi Watch S4 41mm.
- The Xiaomi 18 Pro has the bigger screen, 6.4 inches against 1.32 inches.
- The Xiaomi 18 Pro is the newer of the two, released in September 2026.