Screen size
Optimus Pad V900Winner: 8.9"+27%
Q516.5"
Quick verdict
Q51 leads the measured specs 10-3.
Measured wins
Optimus Pad V900
3
spec wins
Ties
5
equal specs
Q51
10
spec wins
Overall winner
Screen size
Technology
Optimus Pad V900
GSM / HSPA
Q51
GSM / HSPA / LTE
2G bands
Optimus Pad V900
GSM 850 / 900 / 1800 / 1900
Q51
GSM 850 / 900 / 1800 / 1900
3G bands
Optimus Pad V900
HSDPA 900 / 2100
Q51
HSDPA 850 / 900 / 1900 / 2100
Speed
Optimus Pad V900
HSPA 10.2/2 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain 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
Stereo speakers
equal specsQ51
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/75 Mbps
4G bands
Optimus Pad V900
-
Q51
1, 3, 7, 8, 20
Announced
Optimus Pad V900
2011, February. Released 2011, May
Q51
2020, February 25. Released 2020, February 26
Status
Optimus Pad V900
Discontinued
Q51
Discontinued
Dimensions
Optimus Pad V900
243.8 x 150 x 12.7 mm (9.60 x 5.91 x 0.5 in)
Q51
164.5 x 77.5 x 8.4 mm (6.48 x 3.05 x 0.33 in)
Weight
Optimus Pad V900
621 g (1.37 lb)
Q51
-
SIM
Optimus Pad V900
Mini-SIM
Q51
Nano-SIM + Nano-SIM
Other
Optimus Pad V900
-
Q51
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
Optimus Pad V900
IPS LCD
Q51
IPS LCD
Size
Optimus Pad V900
8.9 inches, 225.5 cm2 (~61.7% screen-to-body ratio)
Q51
6.5 inches, 105.5 cm2 (~82.7% screen-to-body ratio)
Resolution
Optimus Pad V900
768 x 1280 pixels, 5:3 ratio (~168 ppi density)
Q51
720 x 1520 pixels, 19:9 ratio (~259 ppi density)
OS
Optimus Pad V900
Android 3.0 (Honeycomb)
Q51
Android 10
Chipset
Optimus Pad V900
Nvidia Tegra 2 T20
Q51
Mediatek MT6762 Helio P22 (12 nm)
CPU
Optimus Pad V900
Dual-core 1.0 GHz Cortex-A9
Q51
Octa-core 2.0 GHz Cortex-A53
GPU
Optimus Pad V900
ULP GeForce
Q51
PowerVR GE8320
Card slot
Optimus Pad V900
No
Q51
microSDXC (dedicated slot)
Internal
Optimus Pad V900
32GB
Q51
32GB 3GB RAM
Other
Optimus Pad V900
-
Q51
eMMC 5.1
Single
Optimus Pad V900
5 MP, AF 5 MP, AF
Q51
-
Features
Optimus Pad V900
LED flash
Q51
LED flash, panorama, HDR
Video
Optimus Pad V900
1080p@24fps (2D), 720@30fps (3D)
Q51
1080p@30fps
Triple
Optimus Pad V900
-
Q51
13 MP, (wide), PDAF 5 MP, 13mm (ultrawide) Auxiliary lens
Single
Optimus Pad V900
2 MP
Q51
13 MP, (wide), 1/3.1", 1.12µm
Video
Optimus Pad V900
Q51
1080p@30fps
Loudspeaker
Optimus Pad V900
Yes, with stereo speakers
Q51
Yes, with stereo speakers
3.5mm jack
Optimus Pad V900
Yes
Q51
Yes
WLAN
Optimus Pad V900
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Q51
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Bluetooth
Optimus Pad V900
2.1, A2DP, EDR
Q51
5.0, A2DP, LE
Positioning
Optimus Pad V900
GPS, A-GPS
Q51
GPS
Radio
Optimus Pad V900
No
Q51
No
USB
Optimus Pad V900
microUSB 2.0
Q51
USB Type-C 2.0
NFC
Optimus Pad V900
-
Q51
Yes
Sensors
Optimus Pad V900
Accelerometer, proximity, compass
Q51
Fingerprint (rear-mounted), accelerometer, proximity, compass
Browser
Optimus Pad V900
HTML, Adobe Flash
Q51
-
Other
Optimus Pad V900
HDMI port MP4/DivX/XviD/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document viewer/editor Organizer Voice memo Predictive text input
Q51
-
Type
Optimus Pad V900
Non-removable Li-Ion 6400 mAh battery
Q51
Li-Po 4000 mAh
Stand-by
Optimus Pad V900
Up to 273 h
Q51
-
Talk time
Optimus Pad V900
Up to 9 h 20 min
Q51
-
Colors
Optimus Pad V900
Black
Q51
Frozen White, Moonlight Titanium
Models
Optimus Pad V900
V900
Q51
LM-Q510N
Price
Optimus Pad V900
About 190 EUR
Q51
About 240 EUR