Screen size
G51SWinner: 6.4"+1.6%
G9 Pro6.3"
Quick verdict
G9 Pro leads the measured specs 10-2.
Measured wins
G51S
2
spec wins
Ties
6
equal specs
G9 Pro
10
spec wins
Overall winner
Screen size
Technology
G51S
GSM / HSPA / LTE
G9 Pro
GSM / HSPA / LTE
2G bands
G51S
GSM 850 / 900 / 1800 / 1900
G9 Pro
GSM 850 / 900 / 1800 / 1900
3G bands
G51S
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
G9 Pro
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
G51S
1, 2, 3, 4, 5, 7, 12, 17, 28
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
G9 Pro
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28
Speed
G51S
HSPA, LTE
G9 Pro
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
G51S
2022, January. Released 2022, January
G9 Pro
2019, August. Released 2019, August
Status
G51S
Discontinued
G9 Pro
Discontinued
Dimensions
G51S
162.4 x 77.5 x 9 mm (6.39 x 3.05 x 0.35 in)
G9 Pro
157 x 75.1 x 8.6 mm (6.18 x 2.96 x 0.34 in)
Weight
G51S
185 g (6.53 oz)
G9 Pro
183 g (6.46 oz)
SIM
G51S
G9 Pro
Nano-SIM + Nano-SIM
Type
G51S
IPS LCD
G9 Pro
IPS LCD
Size
G51S
6.4 inches, 100.5 cm2 (~79.9% screen-to-body ratio)
G9 Pro
6.3 inches, 97.4 cm2 (~82.6% screen-to-body ratio)
Resolution
G51S
720 x 1560 pixels, 19.5:9 ratio (~268 ppi density)
G9 Pro
1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
OS
G51S
Android 11 (Go edition)
G9 Pro
Android 9.0 (Pie), planned upgrade to Android 10
CPU
G51S
Octa-core 1.6 GHz Cortex-A55
G9 Pro
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Chipset
G51S
-
G9 Pro
Mediatek MT6771 Helio P60 (12 nm)
GPU
G51S
-
G9 Pro
Mali-G72 MP3
Card slot
G51S
microSDXC
G9 Pro
microSDXC
Internal
G51S
32GB 2GB RAM
G9 Pro
128GB 4GB RAM
Other
G51S
eMMC 5.1
G9 Pro
eMMC 5.1
Dual
G51S
13 MP Auxiliary lens
G9 Pro
-
Features
G51S
LED flash
G9 Pro
LED flash, HDR, panorama
Video
G51S
1080p@30fps
G9 Pro
1080p@30fps
Triple
G51S
-
G9 Pro
48 MP, f/1.8, 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, (ultrawide) Auxiliary lens
Single
G51S
8 MP
G9 Pro
16 MP, f/2.0
Video
G51S
720p@30fps
G9 Pro
1080p@30fps
Loudspeaker
G51S
Yes
G9 Pro
Yes
3.5mm jack
G51S
Yes
G9 Pro
Yes
WLAN
G51S
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
G9 Pro
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Bluetooth
G51S
4.2, A2DP, LE
G9 Pro
4.1, A2DP, LE
Positioning
G51S
GPS
G9 Pro
GPS
NFC
G51S
No
G9 Pro
No
Radio
G51S
FM radio
G9 Pro
FM radio
USB
G51S
USB Type-C 2.0
G9 Pro
USB Type-C 2.0, OTG
Sensors
G51S
Fingerprint (rear-mounted), accelerometer, proximity
G9 Pro
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
G51S
Li-Po 4000 mAh
G9 Pro
Li-Po 4000 mAh, non-removable
Charging
G51S
-
G9 Pro
18W wired 10W wireless (Qi)
Stand-by
G51S
-
G9 Pro
Up to 625 h (3G)
Talk time
G51S
-
G9 Pro
Up to 21 h (3G)
Colors
G51S
Bronze, Gradient Blue, Green, Red
G9 Pro
Nightfall, Black
Price
G51S
About 80 EUR
G9 Pro
-