Razer Phone 2 vs vivo X51 5G

Network
2G network

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

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

HSDPA 850, 900, 1700(AWS), 1800, 1900, 2100

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

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 48, 66(1700/2100), 71(600)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
5G network

-

5G band 1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

-

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.8 GHz Kryo 385 Gold

Single-core 2.4 GHz Kryo 475 Prime
CPU(second)

quad-core 1.7 GHz Kryo 385 Silver

Single-core 2.2 GHz Kryo 475 Gold
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver
Chipset

Qualcomm SDM845 Snapdragon 845

Qualcomm SM7250 Snapdragon 765G
GPU

Adreno 630

Adreno 620
Memory RAM

8 GB

8 GB
Internal storage

64 GB

256 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

512 GB

-
Storage

-

UFS 2.1

Main camera
Camera type

Dual

Quad
Main camera

12 MP, f/1.8 , 1.4 µm, 2x optical zoom

48 MP, f/1.6 , 0.8 µm, (wide) , 1/1.2"
12 MP, f/2.6 , 1.0 µm

8 MP, f/3.4 , (periscope telephoto) , 135 mm, 1/4.0" , 5x optical zoom
(portrait) , 13 MP, f/2.5 , 50 mm, 1/2.8" , 0.8 µm, 2x optical zoom
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
Primary camera resolution

4032 x 3024 pixels

8000 x 6000 pixels
Primary camera video

2160p@30/60fps, 1080p@30/30/60/120fps, stereo sound rec.

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

dual-LED flash

dual-LED dual-tone flash
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

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

Autofocus, continuous shooting, digital 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
DxOMark photo

-

117
DxOMark zoom

-

67
DxOMark video

-

102
DxOMark camera score

-

114

Selfie camera
Selfie camera type

-

Single
Selfie camera

8 MP, f/2.0 , 25 mm, 1/2.55"

32 MP, f/2.5 , 26 mm, 1/2.8" , (wide) , 0.8 µm
1/3.1"
Selfie camera resolution

3264 x 2448 pixels

6528 x 4896 pixels
Selfie camera features

-

Face unlock
Selfie camera video

1080p@30/60fps

1080p@30fps
DxOMark photo

-

82
DxOMark video

-

78
DxOMark camera score

-

81

Connectivity
WLAN

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

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

Yes

-
Bluetooth AptX

-

aptX HD
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
Beidou

Yes

-
BDS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyro, light, proximity

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity