Screen size
G Pad X 8.0Winner: 8.0"+19%
Q516.5"
Quick verdict
Q51 leads the measured specs 8-6.
Measured wins
G Pad X 8.0
6
spec wins
Ties
4
equal specs
Q51
8
spec wins
Overall winner
Screen size
Technology
G Pad X 8.0
GSM / HSPA / LTE
Q51
GSM / HSPA / LTE
2G bands
G Pad X 8.0
GSM 850 / 900 / 1800 / 1900
Q51
GSM 850 / 900 / 1800 / 1900
3G bands
G Pad X 8.0
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Q51
HSDPA 850 / 900 / 1900 / 2100
4G bands
G Pad X 8.0
2, 3, 4, 7, 12
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
3.5mm jack
equal specsSD card
equal specsStereo speakers
Q51
1, 3, 7, 8, 20
Speed
G Pad X 8.0
HSPA, LTE
Q51
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/75 Mbps
Announced
G Pad X 8.0
2016, June. Released 2016, June
Q51
2020, February 25. Released 2020, February 26
Status
G Pad X 8.0
Discontinued
Q51
Discontinued
Dimensions
G Pad X 8.0
210.8 x 121.9 x 7.9 mm (8.30 x 4.80 x 0.31 in)
Q51
164.5 x 77.5 x 8.4 mm (6.48 x 3.05 x 0.33 in)
Weight
G Pad X 8.0
309 g (10.90 oz)
Q51
-
SIM
G Pad X 8.0
Nano-SIM
Q51
Nano-SIM + Nano-SIM
Other
G Pad X 8.0
-
Q51
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
G Pad X 8.0
IPS LCD
Q51
IPS LCD
Size
G Pad X 8.0
8.0 inches, 185.6 cm2 (~72.2% screen-to-body ratio)
Q51
6.5 inches, 105.5 cm2 (~82.7% screen-to-body ratio)
Resolution
G Pad X 8.0
1200 x 1920 pixels, 16:10 ratio (~283 ppi density)
Q51
720 x 1520 pixels, 19:9 ratio (~259 ppi density)
OS
G Pad X 8.0
Android 6.0.1 (Marshmallow)
Q51
Android 10
Chipset
G Pad X 8.0
Qualcomm MSM8939 Snapdragon 615 (28 nm)
Q51
Mediatek MT6762 Helio P22 (12 nm)
CPU
G Pad X 8.0
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Q51
Octa-core 2.0 GHz Cortex-A53
GPU
G Pad X 8.0
Adreno 405
Q51
PowerVR GE8320
Card slot
G Pad X 8.0
microSDXC (dedicated slot)
Q51
microSDXC (dedicated slot)
Internal
G Pad X 8.0
16GB 2GB RAM, 32GB 2GB RAM
Q51
32GB 3GB RAM
Other
G Pad X 8.0
eMMC 4.5
Q51
eMMC 5.1
Single
G Pad X 8.0
5 MP, AF
Q51
-
Features
G Pad X 8.0
Panorama
Q51
LED flash, panorama, HDR
Video
G Pad X 8.0
1080p@30fps
Q51
1080p@30fps
Triple
G Pad X 8.0
-
Q51
13 MP, (wide), PDAF 5 MP, 13mm (ultrawide) Auxiliary lens
Single
G Pad X 8.0
5 MP
Q51
13 MP, (wide), 1/3.1", 1.12µm
Video
G Pad X 8.0
Q51
1080p@30fps
Loudspeaker
G Pad X 8.0
Yes
Q51
Yes, with stereo speakers
3.5mm jack
G Pad X 8.0
Yes
Q51
Yes
WLAN
G Pad X 8.0
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Q51
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Bluetooth
G Pad X 8.0
4.2, A2DP, LE
Q51
5.0, A2DP, LE
Positioning
G Pad X 8.0
GPS, GLONASS
Q51
GPS
NFC
G Pad X 8.0
No
Q51
Yes
Radio
G Pad X 8.0
No
Q51
No
USB
G Pad X 8.0
microUSB 2.0
Q51
USB Type-C 2.0
Sensors
G Pad X 8.0
Accelerometer, compass
Q51
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
G Pad X 8.0
Li-Ion 4800 mAh, non-removable
Q51
Li-Po 4000 mAh
Colors
G Pad X 8.0
White/Gold
Q51
Frozen White, Moonlight Titanium
Models
G Pad X 8.0
V520, V521
Q51
LM-Q510N
Price
G Pad X 8.0
About 220 EUR
Q51
About 240 EUR