General Mobile GM 20 vs vivo X100 Pro

General Mobile GM 20

vivo X100 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 3, 7, 8, 20, 38, 40

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

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

LTE, Cat4, 150 Mbps download, 102 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS

LTPO AMOLED
Physical size

6.09 inches

6.78 inches
Resolution

720 x 1560 pixels

1260 x 2800 pixels
Pixel density

282 ppi

453 ppi
Display colors

16777216

1073741824
Protection

Scratch resistant, 2.5D curved glass screen, Oleophobic coating

Scratch resistant
Display features

-

120Hz, 3000 nits (peak)

Main camera
Camera type

Triple

Triple
Main camera

13 MP, f/1.8

50.3 MP, f/1.8 , (wide) , 1/0.98" , 100x digital zoom
5 MP

50 MP, (periscope telephoto) , f/2.5 , 100 mm, 1/2" , 0.7 µm, 4.3x optical zoom
2 MP

50 MP, 119˚ , (ultrawide) , f/2.0 , 15 mm, 1/2.76"
Primary camera resolution

4160 x 3120 pixels

6560 x 4928 pixels
Primary camera video

1080p@30fps

8K, 4K, 1080p, gyro-EIS, Cinematic mode (4K)
Primary camera optics

-

Zeiss optics, Zeiss T* lens coating
Primary camera flash

dual-LED flash

LED flash
Camera features

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

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical 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, laser autofocus

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, 802.11ax, 802.11be
WLAN WiFi Hotspot

Yes

-
WLAN WiFi Direct

Yes

Yes
WiFi Tri-Band

-

Yes
USB

Type-C 2.0

Type-C 3.2
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.4
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

BeiDou

-
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes