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Model

Apple Watch Series 6 44mm Cellular

Compare Apple Watch Series 6 44mm Cellular and vivo X21

Apple Watch Series 6 44mm Cellular vs vivo X21

Apple Watch Series 6 44mm Cellular

Apple Watch Series 6 44mm Cellular

vivo X21

Apple Watch Series 6 44mm Cellular

vivo X21

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 39, 40, 41, 66

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSPA speed

-

HSPA
LTE speed

-

LTE
GPRS

-

Yes
EDGE

-

Yes

Availability
Oficially announced

2020-09

2018-3
Status

2020-09

2018

Design
Build

Glass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame

Front glass, aluminum body
SIM

eSIM

Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

44 mm

154.5 mm
Width

38 mm

74.8 mm
Thickness

10.4 mm

7.4 mm
Weight

47.1 g

156.2 g
Waterproof

50 m

-
Colors

Graphite, Gold, Silver

Aurora White, Black, Ruby Red

Display
Display type

Retina LTPO OLED

Super AMOLED capacitive touchscreen
Physical size

1.78 inches

6.28 inches
Resolution

448 x 368 pixels

1080 x 2280 pixels
Pixel density

326 ppi

402 ppi
Display colors

16777216

16777216
Protection

Sapphire crystal glass

-
Multitouch

-

Yes
Display features

1000 nits (peak), Always-on display

-

Hardware
CPU

-

Octa-core
CPU

Dual-core

Quad-core 2.2 GHz Kryo 260
CPU(second)

quad-core 1.8 GHz Kryo 260
Chipset

Apple S6

Qualcomm SDM660 Snapdragon 660
GPU

PowerVR

Adreno 512
Memory RAM

1 GB

6 GB
Internal storage

32 GB

64, 128 GB
Memory card

No

microSD(uses second SIM slot)
Memory card max

-

256 GB

OS
OS

watchOS 7.0, upgradable to 7.1

Android 8.1 (Oreo)

Sound
3.5mm jack

No

Yes
Loudspeaker

Yes

Yes
Notifications

-

Vibration; MP3, WAV ringtones
Earpiece

-

Yes

Multimedia
Radio

No

-
Radio FM

-

FM radio

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

No

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
QZSS

Yes

-

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging Push Email

-

Push Email
Sensors

Accelerometer, always-on altimeter, barometer, compass, gyroscope, heart rate, SpO2, VO2max

Fingerprint (rear-mounted), accelerometer, compass, proximity

Battery
Battery type

Li-Ion

Li-Ion
Battery capacity

303 mAh

3200 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

-

Yes
Wireless charging

Yes

-
Standby time

18 h

-

Cost
Price

900 USD

-

Main camera
Camera type

-

Dual
Main camera

12 MP, f/1.8 , 1/2.5" , 1.4 µm
5 MP, f/2.4
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

-

1080p@30fps
Primary camera Autofocus

-

dual pixel phase detection autofocus
Primary camera flash

-

LED flash
Camera features

-

Geo-tagging, HDR, face detection, panorama, touch focus

Selfie camera
Selfie camera

12 MP, f/2.0
Selfie camera resolution

-

4032 x 3024 pixels
Selfie camera video

-

1080p@30fps

Browser
HTML

-

HTML5

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