Allview V4 Viper Pro vs Lava X81 Comparison

Class	Smartphone	Smartphone
Status	Available	Discontinued
SIM Type	Dual Nano SIM	Dual SIM (GSM+GSM)
Network	2G: 850/900/1800/1900MHz; SIM1 and SIM2 3G: UMTS 900/2100MHz; SIM1 or SIM2 4G: FDD 800/1800/2100/2600MHz TDD 2600MHz; SIM1 or SIM2	2G Network: GSM 900 / 1800 - SIM 1 & SIM 2 3G Network: HSDPA 900 / 2100 4G Network: LTE band 3(1800), 40(2300)
Operating System	Android™ 9, Pie	Android OS, v6.0.1 (Marshmallow)
Processor	Cortex®-A53 quad-core 1.27 GHz	1.3 GHz Quad-core Mediatek MT6735
Browser	--	HTML
Form Factor	--	Candy bar
In The Box	Phone Power supply Micro USB cable SIM pin Manual Warranty certificates Silicone cover	--

Dimension (HxWxD)	171 x 82 x 8.8 mm	142.6 x 73.4 x 8.4 mm
Weight	191.6 g	-- g

Size	6.8 Inch	5.0 inches (~294 ppi)
Technology	IPS LCD	IPS LCD capacitive touchscreen
Resolution	640x1352px	720 x 1280 pixels
Colors	--	16M colors
Other Features	2.5D multitouch capacitive touchscreen 18:9 Aspect Ratio	--

Internal Memory	32GB	16 GB
External Memory	Up to 128GB in single SIM mode	Yes, up to 64 GB via microSD
RAM	2GB	3 GB

Type	Li-Pol 3500mAh	Li-Ion 2700 mAh battery
Talk Time	Until 1400 min	--
Stand-by Time	Up to 350h	--

Primary Camera(Rear)	13MP AF+VGA	13 MP with dual-LED flash
Secondary Camera(Front)	8MP	5 MP
Resolution	--	4128 x 3096 Pixels
Digital/Optical Zoom	--	Digital Zoom
Video	FULL HD 1080p	1080p
Features	Touch focus Bokeh Face beauty Rear LED flash	Exposure compensation, ISO control, Continuos Shooting, High Dynamic Range mode (HDR), Auto Flash, Face detection, Touch to focus

GPRS	Yes Class 10	Yes
EDGE	Yes Class 10	Yes
3G	--	Yes, HSPA
4G	Cat 4 DL Cat 4 UP	Yes, LTE Cat4 150/50 Mbps
Bluetooth	Class 4.0 BLE	Yes, v4.0
USB	2.0 micro USB	Yes, microUSB v2.0, USB On-The-Go
Wi-Fi	802.11 /b/g/n	Yes, Wi-Fi 802.11 b/g/n, hotspot
GPS	GPS, AGPS, Glonass	Yes, with A-GPS, GLONASS

Music Player	--	Yes, Supports MP3, WAV, eAAC+ player
MP3 Ringtone	--	Yes
LoudSpeaker	Yes	Yes
Video Player	FULL HD 1080p video formats	Yes, Supports MP4, H.264 player
Video recording	--	1080p@30fps

SMS	--	Yes
MMS	--	Yes
Email	Yes	Yes
Instant Messaging	--	Yes

Java	--	No
Sensors	Accelerometer Proximity sensor Light sensor Fingerprint sensor	Light sensor, Proximity sensor, Accelerometer
FM Radio	Yes	Yes
Additional Features	Language: Romanian, English, German, Spanish, Hungarian, French, Dutch, Russian, Italian GPU: PowerVR Rogue GE8100 Alert type: Vibration, ringtone Charger type: 5V/2A 3.5mm jack Standard TRRS: CTIA Recommended headphone impedance: 32 Ω Internet: Tethering via Wifi Tethering via USB Bluetooth tethering	--

Colors

Dark Grey

Space Grey/Gold