Xiaomi Mi Watch (China) vs vivo Y51s

Xiaomi Mi Watch (China)

vivo Y51s

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 850, 900, 1900

HSDPA 850, 900, 1700(AWS), 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850), 39(1900), 40(2300), 41(2500)

LTE frequency band 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
5G network

-

5G band 1, 41, 78; SA/NSA
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

-

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
5G speed

-

3.6+ Gbps download
GPRS

-

Yes
EDGE

-

Yes

Display
Display type

Super AMOLED capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

1.78 inches

6.53 inches
Resolution

368 x 448 pixels

1080 x 2340 pixels
Pixel density

326 ppi

395 ppi
Display colors

16777216

16777216

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

No

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
GALILEO

-

Yes
BDS

Yes

Yes

Features
Sensors

Accelerometer, barometer, gyro, heart rate

Accelerometer, compass, gyroscope, proximity

Main camera
Camera type

-

Triple
Main camera

48 MP, f/1.8 , 25 mm, 1/2.0" , 0.8 µm
2 MP, f/2.4
2 MP, f/2.4
Primary camera resolution

-

8000 x 6000 pixels
Primary camera video

-

4K@30fps, 1080p@30fps; gyro-EIS
Primary camera flash

-

LED flash
Camera features

-

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW

vivo Y51s comparisons