Screen size
Q31Winner: 5.7"+30%
Viper 4G LTE LS8404.0"
Quick verdict
Q31 leads the measured specs 11-2.
Measured wins
Q31
11
spec wins
Overall winner
Ties
4
equal specs
Viper 4G LTE LS840
2
spec wins
Screen size
Technology
Q31
GSM / HSPA / LTE
Viper 4G LTE LS840
CDMA / EVDO / LTE
2G bands
Q31
GSM 850 / 900 / 1800 / 1900
Viper 4G LTE LS840
CDMA 800 / 1900
3G bands
Q31
HSDPA 850 / 900 / 1900 / 2100
Viper 4G LTE LS840
CDMA2000 1xEV-DO
4G bands
Q31
LTE
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
Viper 4G LTE LS840
25
Speed
Q31
HSPA, LTE
Viper 4G LTE LS840
EV-DO Rev.A 3.1 Mbps, LTE
Announced
Q31
2020, September 17. Released 2020, September 25
Viper 4G LTE LS840
2012, January. Released 2012, April
Status
Q31
Discontinued
Viper 4G LTE LS840
Discontinued
Dimensions
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Viper 4G LTE LS840
117 x 62 x 11.7 mm (4.61 x 2.44 x 0.46 in)
Weight
Q31
145 g (5.11 oz)
Viper 4G LTE LS840
142 g (5.01 oz)
SIM
Q31
Nano-SIM
Viper 4G LTE LS840
Mini-SIM
Other
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Viper 4G LTE LS840
-
Type
Q31
IPS LCD
Viper 4G LTE LS840
TFT
Size
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Viper 4G LTE LS840
4.0 inches, 45.5 cm2 (~62.8% screen-to-body ratio)
Resolution
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Viper 4G LTE LS840
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
Q31
Android 10
Viper 4G LTE LS840
Android 2.3 (Gingerbread)
Chipset
Q31
Mediatek MT6762 Helio P22 (12 nm)
Viper 4G LTE LS840
-
CPU
Q31
Octa-core 2.0 GHz Cortex-A53
Viper 4G LTE LS840
Dual-core 1.2 GHz
GPU
Q31
PowerVR GE8320
Viper 4G LTE LS840
Adreno 220
Card slot
Q31
microSDXC
Viper 4G LTE LS840
microSDHC (dedicated slot), 4 GB included
Internal
Q31
32GB 3GB RAM
Viper 4G LTE LS840
4GB (1.7GB user available), 1GB RAM
Other
Q31
eMMC 5.1
Viper 4G LTE LS840
-
Dual
Q31
13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
Viper 4G LTE LS840
-
Features
Q31
LED flash, panorama, HDR
Viper 4G LTE LS840
LED flash
Video
Q31
1080p@30fps
Viper 4G LTE LS840
1080p@30fps
Single
Q31
-
Viper 4G LTE LS840
5 MP, AF
Single
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Viper 4G LTE LS840
VGA
Video
Q31
1080p@30fps
Viper 4G LTE LS840
Loudspeaker
Q31
Yes
Viper 4G LTE LS840
Yes
3.5mm jack
Q31
Yes
Viper 4G LTE LS840
Yes
WLAN
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Viper 4G LTE LS840
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot, DLNA
Bluetooth
Q31
5.0, A2DP, LE
Viper 4G LTE LS840
3.0, A2DP
Positioning
Q31
GPS
Viper 4G LTE LS840
GPS, A-GPS
NFC
Q31
No
Viper 4G LTE LS840
Yes
Radio
Q31
No
Viper 4G LTE LS840
No
USB
Q31
microUSB 2.0
Viper 4G LTE LS840
microUSB 2.0
Sensors
Q31
Accelerometer
Viper 4G LTE LS840
Accelerometer, proximity, compass
Other
Q31
-
Viper 4G LTE LS840
MP4/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document viewer Organizer Voice memo/dial Predictive text input (Swype)
Type
Q31
Li-Ion 3000 mAh
Viper 4G LTE LS840
Removable Li-Ion 1700 mAh battery
Talk time
Q31
-
Viper 4G LTE LS840
Up to 7 h
Colors
Q31
Silver
Viper 4G LTE LS840
Black
Models
Q31
LM-Q310N
Viper 4G LTE LS840
-
Price
Q31
About 150 EUR
Viper 4G LTE LS840
About 140 EUR
SAR
Q31
-
Viper 4G LTE LS840
1.05 W/kg (head) 1.16 W/kg (body)