Compare / Xiaomi Watch S5 46mm vs Xiaomi 18 Pro

Xiaomi Watch S5 46mm vs Xiaomi 18 Pro

A side-by-side comparison of the Xiaomi Watch S5 46mm and the Xiaomi 18 Pro, covering display, chipset, memory, camera, battery and build.

Xiaomi 18 Pro
Xiaomi
Xiaomi 18 Pro

Overview

Display
Xiaomi Watch S5 46mm
1.48inch
AMOLED
480 × 480 · 323 PPI
Xiaomi 18 Pro
6.4inch
LTPO AMOLED · 120 Hz
1120 × 2436 · 419 PPI
Chip
Xiaomi Watch S5 46mm
Xiaomi HyperOS 3
Xiaomi 18 Pro
Qualcomm Snapdragon 8 Elite Gen 6 (2 nm)
Octa-core (up to 5 GHz)
Adreno · Android 17
Memory
Xiaomi Watch S5 46mm
No card slot
Xiaomi 18 Pro
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
Xiaomi Watch S5 46mm
—
Xiaomi 18 Pro
200MP Main
200 MP Periscope
50 MP Ultra Wide
50 MP selfie
8K@30fps (HDR) video
Battery
Xiaomi Watch S5 46mm
815mAh
Xiaomi 18 Pro
7,000mAh
100 W wired · 50 W wireless
Build
Xiaomi Watch S5 46mm
46g
46 × 46 × 11 mm
Xiaomi 18 Pro
203g
151.8 × 72 × 8.5 mm
IP68
Connectivity
Xiaomi Watch S5 46mm
4GWi-FiBluetooth 5.4NFCeSIM (market/region dependent)
Xiaomi 18 Pro
5GWi-Fi 7Bluetooth 6.0NFCNano-SIM + Nano-SIMUSB Type-C 3.2

Specifications

Xiaomi Watch S5 46mm

Technology
HSPA / LTE
3G bands
HSDPA - cellular model only
4G bands
LTE - cellular model only
Speed
HSPA, LTE
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 S5 46mm

Announced
2026, May 28
Status
Available. Released 2026, May 28

Xiaomi 18 Pro

Announced
2026, September 23
Status
Available. Released 2026, September 23

Xiaomi Watch S5 46mm

Dimensions
46 x 46 x 11 mm (1.81 x 1.81 x 0.43 in)
Weight
46 g (1.62 oz)
Build
Glass front, stainless steel frame, stainless steel/ceramic/forged carbon bezel
SIM

eSIM (market/region dependent)

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 S5 46mm

Type
AMOLED, 1500 nits (HBM), 2500 nits (peak)
Size
1.48 inches
Resolution
480 x 480 pixels (~323 ppi density)
Protection
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 S5 46mm

OS
Xiaomi HyperOS 3

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 S5 46mm

Card slot
No
Internal
Unspecified storage

Xiaomi 18 Pro

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

Xiaomi Watch S5 46mm

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 S5 46mm

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 S5 46mm

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 S5 46mm

WLAN
Yes (file transfer only)
Bluetooth
5.4, LE
Positioning
GPS (L1+L5), 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 S5 46mm

Sensors
Accelerometergyrocompassbarometerheart rateSpO2

Xiaomi 18 Pro

Sensors

Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer

Ultra Wideband (UWB) support

Xiaomi Watch S5 46mm

Type
Li-Po 815 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 S5 46mm

Colors
Black, Silver, Ceramic Blue, Jungle Green, Beige (eSIM)
Models
M2530W1, M2517W1
Price
€ 152.99

Xiaomi 18 Pro

Colors
Black, White, Pink, Red, Blue
Price
About 790 EUR

Xiaomi Watch S5 46mm

No

Xiaomi 18 Pro

Not listed for this device

How the Xiaomi Watch S5 46mm and Xiaomi 18 Pro differ

  • The Xiaomi 18 Pro has a larger battery, 7000 mAh against 815 mAh on the Xiaomi Watch S5 46mm.
  • The Xiaomi 18 Pro has the bigger screen, 6.4 inches against 1.48 inches.
  • The Xiaomi 18 Pro is the newer of the two, released in September 2026.