Screen size
equal specsV2 Viper X+5.5"
V3 Viper5.5"
Quick verdict
V3 Viper leads the measured specs 7-2.
Measured wins
V2 Viper X+
2
spec wins
Ties
8
equal specs
V3 Viper
7
spec wins
Overall winner
Screen size
equal specsTechnology
V2 Viper X+
GSM / HSPA / LTE
V3 Viper
GSM / HSPA / LTE
2G bands
V2 Viper X+
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
V3 Viper
GSM 850 / 900 / 1800 / 1900
3G bands
V2 Viper X+
HSDPA 900 / 1900 / 2100
V3 Viper
HSDPA 850 / 900 / 1900 / 2100
4G bands
V2 Viper X+
1, 3, 7, 20, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
V3 Viper
1, 3, 5, 8, 20, 38, 39, 40
Speed
V2 Viper X+
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
V3 Viper
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
V2 Viper X+
2015, October. Released 2015, October
V3 Viper
2018, January. Released 2018, February
Status
V2 Viper X+
Discontinued
V3 Viper
Discontinued
Dimensions
V2 Viper X+
154 x 77 x 7.2 mm (6.06 x 3.03 x 0.28 in)
V3 Viper
148.3 x 71.8 x 8.1 mm (5.84 x 2.83 x 0.32 in)
Weight
V2 Viper X+
155.3 g (5.47 oz)
V3 Viper
143.6 g (5.08 oz)
SIM
V2 Viper X+
Dual SIM (Micro-SIM, dual stand-by)
V3 Viper
Nano-SIM + Micro-SIM
Type
V2 Viper X+
AMOLED
V3 Viper
IPS LCD
Size
V2 Viper X+
5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
V3 Viper
5.5 inches, 78.1 cm2 (~73.3% screen-to-body ratio)
Resolution
V2 Viper X+
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
V3 Viper
720 x 1440 pixels, 18:9 ratio (~293 ppi density)
Protection
V2 Viper X+
Corning Gorilla Glass 3
V3 Viper
Corning Gorilla Glass 3
OS
V2 Viper X+
Android 5.1 (Lollipop)
V3 Viper
Android 8.0 (Oreo)
Chipset
V2 Viper X+
Mediatek MT6753 (28 nm)
V3 Viper
Mediatek MT6737 (28 nm)
CPU
V2 Viper X+
Octa-core 1.3 GHz Cortex-A53
V3 Viper
Quad-core 1.3 GHz Cortex-A53
GPU
V2 Viper X+
Mali-T720
V3 Viper
Mali-T720MP2
Card slot
V2 Viper X+
microSDXC
V3 Viper
microSDXC (uses shared SIM slot)
Internal
V2 Viper X+
16GB 3GB RAM
V3 Viper
32GB 3GB RAM
Other
V2 Viper X+
-
V3 Viper
eMMC 5.0
Single
V2 Viper X+
13 MP, f/2.0, AF
V3 Viper
13 MP, AF
Features
V2 Viper X+
LED flash, HDR
V3 Viper
LED flash, HDR
Video
V2 Viper X+
1080p@30fps
V3 Viper
1080p@30fps
Single
V2 Viper X+
5 MP
V3 Viper
13 MP
Video
V2 Viper X+
V3 Viper
Features
V2 Viper X+
-
V3 Viper
LED flash
Loudspeaker
V2 Viper X+
Yes
V3 Viper
Yes
3.5mm jack
V2 Viper X+
Yes
V3 Viper
Yes
WLAN
V2 Viper X+
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct
V3 Viper
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
V2 Viper X+
4.0, A2DP, EDR
V3 Viper
4.2, A2DP, LE
Positioning
V2 Viper X+
GPS
V3 Viper
GPS
NFC
V2 Viper X+
No
V3 Viper
No
Radio
V2 Viper X+
FM radio
V3 Viper
FM radio
USB
V2 Viper X+
USB Type-C
V3 Viper
microUSB 2.0
Infrared port
V2 Viper X+
-
V3 Viper
Yes
Sensors
V2 Viper X+
Accelerometer, proximity, compass
V3 Viper
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
V2 Viper X+
Li-Po 3150 mAh, removable
V3 Viper
Li-Po 3000 mAh, non-removable
Stand-by
V2 Viper X+
Up to 393 h (3G)
V3 Viper
-
Talk time
V2 Viper X+
Up to 13 h 40 min (3G)
V3 Viper
-
Colors
V2 Viper X+
Dark blue, Golden pearl
V3 Viper
Black, Silver, Gold
SAR EU
V2 Viper X+
0.69 W/kg (head)
V3 Viper
1.26 W/kg (head)
Price
V2 Viper X+
About 300 EUR
V3 Viper
About 220 EUR