Screen size
G51Winner: 6.1"+1.6%
Vivo X6.0"
Quick verdict
Vivo X leads the measured specs 7-5.
Measured wins
G51
5
spec wins
Ties
5
equal specs
Vivo X
7
spec wins
Overall winner
Screen size
Technology
G51
GSM / HSPA / LTE
Vivo X
GSM / HSPA / LTE
2G bands
G51
GSM 850 / 900 / 1800 / 1900
Vivo X
GSM 850 / 900 / 1800 / 1900
3G bands
G51
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Vivo X
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
G51
2, 3, 4, 5, 7, 12, 17, 28, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Vivo X
1, 2, 3, 4, 5, 7, 8, 12, 17, 28
Speed
G51
HSPA, LTE
Vivo X
HSPA 42.2/11.5 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
G51
2022, June 03. Released 2022, June 03
Vivo X
2018, February. Released 2018, February
Status
G51
Discontinued
Vivo X
Discontinued
Dimensions
G51
155.3 x 73.5 x 9.5 mm (6.11 x 2.89 x 0.37 in)
Vivo X
160 x 76.8 x 8.2 mm (6.30 x 3.02 x 0.32 in)
Weight
G51
166 g (5.86 oz)
Vivo X
188 g (6.63 oz)
SIM
G51
Nano-SIM + Nano-SIM
Vivo X
Nano-SIM + Micro-SIM
Type
G51
IPS LCD
Vivo X
IPS LCD
Size
G51
6.1 inches, 92.9 cm2 (~81.4% screen-to-body ratio)
Vivo X
6.0 inches, 92.9 cm2 (~75.6% screen-to-body ratio)
Resolution
G51
720 x 1520 pixels, 19:9 ratio (~276 ppi density)
Vivo X
720 x 1440 pixels, 18:9 ratio (~268 ppi density)
Protection
G51
-
Vivo X
Corning Gorilla Glass 3
OS
G51
Android 11 (Go edition)
Vivo X
Android 7.0 (Nougat)
Chipset
G51
Mediatek MT6761 Helio A22 (12 nm)
Vivo X
Mediatek MT6757 Helio P20 (16 nm)
CPU
G51
Quad-core 2.0 GHz Cortex-A53
Vivo X
Octa-core (4x2.6 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
GPU
G51
PowerVR GE8320
Vivo X
Mali-T880MP2
Card slot
G51
microSDXC
Vivo X
microSDXC
Internal
G51
32GB 2GB RAM
Vivo X
64GB 4GB RAM
Other
G51
eMMC 5.1
Vivo X
-
Dual
G51
8 MP Auxiliary lens
Vivo X
13 MP, 1/3.1", 1.12µm, PDAF Auxiliary lens
Features
G51
LED flash, HDR, panorama
Vivo X
LED flash, HDR
Video
G51
1080p@30fps
Vivo X
1080p@30fps
Single
G51
8 MP
Vivo X
-
Video
G51
720p@30fps
Vivo X
Dual
G51
-
Vivo X
20 MP, f/2.0, (wide), 1/2.8", 1.0µm 8 MP, 1/4.0", 1.12µm
Features
G51
-
Vivo X
LED flash
Loudspeaker
G51
Yes
Vivo X
Yes
3.5mm jack
G51
Yes
Vivo X
Yes
WLAN
G51
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Vivo X
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Bluetooth
G51
4.2, A2DP, LE
Vivo X
4.0, A2DP
Positioning
G51
GPS
Vivo X
GPS
NFC
G51
No
Vivo X
No
Radio
G51
FM radio
Vivo X
FM radio
USB
G51
microUSB 2.0
Vivo X
microUSB 2.0
Sensors
G51
Fingerprint (rear-mounted), accelerometer, proximity
Vivo X
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
G51
Li-Po 3000 mAh
Vivo X
Li-Po 4010 mAh, non-removable
Stand-by
G51
-
Vivo X
Up to 750 h (2G) / Up to 700 h (3G)
Talk time
G51
-
Vivo X
Up to 28 h (2G) / Up to 22 h (3G)
Colors
G51
Black, Blue, Green, Silver, Gold
Vivo X
Black
Price
G51
-
Vivo X
About 260 EUR