Screen size
equal specsV3 Viper5.5"
X4 Soul Vision5.5"
Quick verdict
V3 Viper and X4 Soul Vision are close on the measured specs.
Measured wins
V3 Viper
4
spec wins
Ties
9
equal specs
X4 Soul Vision
4
spec wins
Screen size
equal specsTechnology
V3 Viper
GSM / HSPA / LTE
X4 Soul Vision
GSM / HSPA / LTE
2G bands
V3 Viper
GSM 850 / 900 / 1800 / 1900
X4 Soul Vision
GSM 850 / 900 / 1800 / 1900
3G bands
V3 Viper
HSDPA 850 / 900 / 1900 / 2100
X4 Soul Vision
HSDPA 900 / 2100
4G bands
V3 Viper
1, 3, 5, 8, 20, 38, 39, 40
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
X4 Soul Vision
1, 3, 7, 20, 38
Speed
V3 Viper
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
X4 Soul Vision
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
V3 Viper
2018, January. Released 2018, February
X4 Soul Vision
2017, September. Released 2017, September
Status
V3 Viper
Discontinued
X4 Soul Vision
Discontinued
Dimensions
V3 Viper
148.3 x 71.8 x 8.1 mm (5.84 x 2.83 x 0.32 in)
X4 Soul Vision
153.1 x 75.6 x 10.3 mm (6.03 x 2.98 x 0.41 in)
Weight
V3 Viper
143.6 g (5.08 oz)
X4 Soul Vision
202 g (7.13 oz)
SIM
V3 Viper
Nano-SIM + Micro-SIM
X4 Soul Vision
Nano-SIM + Micro-SIM
Type
V3 Viper
IPS LCD
X4 Soul Vision
IPS LCD
Size
V3 Viper
5.5 inches, 78.1 cm2 (~73.3% screen-to-body ratio)
X4 Soul Vision
5.5 inches, 83.4 cm2 (~72.0% screen-to-body ratio)
Resolution
V3 Viper
720 x 1440 pixels, 18:9 ratio (~293 ppi density)
X4 Soul Vision
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection
V3 Viper
Corning Gorilla Glass 3
X4 Soul Vision
-
OS
V3 Viper
Android 8.0 (Oreo)
X4 Soul Vision
Android 7.0 (Nougat)
Chipset
V3 Viper
Mediatek MT6737 (28 nm)
X4 Soul Vision
Mediatek MT6750 (28 nm)
CPU
V3 Viper
Quad-core 1.3 GHz Cortex-A53
X4 Soul Vision
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
V3 Viper
Mali-T720MP2
X4 Soul Vision
Mali-T860MP2
Card slot
V3 Viper
microSDXC (uses shared SIM slot)
X4 Soul Vision
microSDXC (uses shared SIM slot)
Internal
V3 Viper
32GB 3GB RAM
X4 Soul Vision
32GB 3GB RAM
Other
V3 Viper
eMMC 5.0
X4 Soul Vision
eMMC 5.1
Single
V3 Viper
13 MP, AF
X4 Soul Vision
13 MP, 1/3.1", 1.12µm, PDAF
Features
V3 Viper
LED flash, HDR
X4 Soul Vision
LED flash, HDR
Video
V3 Viper
1080p@30fps
X4 Soul Vision
1080p@30fps
Single
V3 Viper
13 MP
X4 Soul Vision
8 MP
Features
V3 Viper
LED flash
X4 Soul Vision
-
Video
V3 Viper
X4 Soul Vision
Loudspeaker
V3 Viper
Yes
X4 Soul Vision
Yes
3.5mm jack
V3 Viper
Yes
X4 Soul Vision
Yes
WLAN
V3 Viper
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X4 Soul Vision
Wi-Fi 802.11 a/b/g/n
Bluetooth
V3 Viper
4.2, A2DP, LE
X4 Soul Vision
4.0, A2DP, EDR, LE
Positioning
V3 Viper
GPS
X4 Soul Vision
GPS
NFC
V3 Viper
No
X4 Soul Vision
No
Infrared port
V3 Viper
Yes
X4 Soul Vision
-
Radio
V3 Viper
FM radio
X4 Soul Vision
FM radio
USB
V3 Viper
microUSB 2.0
X4 Soul Vision
microUSB 2.0
Sensors
V3 Viper
Fingerprint (rear-mounted), accelerometer, proximity, compass
X4 Soul Vision
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Other
V3 Viper
-
X4 Soul Vision
Laser projector
Type
V3 Viper
Li-Po 3000 mAh, non-removable
X4 Soul Vision
Li-Po 4000 mAh, non-removable
Colors
V3 Viper
Black, Silver, Gold
X4 Soul Vision
Dark Blue
SAR EU
V3 Viper
1.26 W/kg (head)
X4 Soul Vision
0.76 W/kg (head)
Price
V3 Viper
About 220 EUR
X4 Soul Vision
-