Apple Watch 44mm Series 5 Aluminum (LTE) vs vivo Y51a

Apple Watch 44mm Series 5 Aluminum (LTE)

vivo Y51a

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 25(1900), 26(850), 39(1900), 40(2300), 41(2500), 66(1700/2100) - global version

LTE frequency band 1, 3, 5, 8, 40
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE-A, 603 Mbps download, 151 Mbps upload
GPRS

-

Yes
EDGE

-

Yes

Display
Display type

LTPO OLED capacitive touchscreen

IPS LCD
Physical size

1.78 inches

6.58 inches
Resolution

448 x 368 pixels

1080 x 2408 pixels
Pixel density

326 ppi

401 ppi
Display colors

16777216

16777216
Protection

Ion-X strengthened glass

-
Display features

3D Touch display, 1000 nits max brightness, always-on display

-

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

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

-

Yes
QZSS

Yes

-

Features
Sensors

Accelerometer, barometer, compass, gyroscope, heart rate

Accelerometer, compass, fingerprint, gyroscope, proximity

Main camera
Camera type

-

Triple
Main camera

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm
(ultrawide) , 8 MP, f/2.2 , 120˚ , 1/4.0" , 1.12 µm
(macro) , 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