Screen size
V3 Viper5.5"
X4 Soul Infinity PlusWinner: 6.0"+8.3%
Quick verdict
X4 Soul Infinity Plus leads the measured specs 8-2.
Measured wins
V3 Viper
2
spec wins
Ties
7
equal specs
X4 Soul Infinity Plus
8
spec wins
Overall winner
Screen size
Technology
V3 Viper
GSM / HSPA / LTE
X4 Soul Infinity Plus
GSM / HSPA / LTE
2G bands
V3 Viper
GSM 850 / 900 / 1800 / 1900
X4 Soul Infinity Plus
GSM 850 / 900 / 1800 / 1900
3G bands
V3 Viper
HSDPA 850 / 900 / 1900 / 2100
X4 Soul Infinity Plus
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
Storage
Main camera
equal specsFront camera
equal specsBattery
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 Infinity Plus
1, 3, 7, 8, 20, 38
Speed
V3 Viper
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
X4 Soul Infinity Plus
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
V3 Viper
2018, January. Released 2018, February
X4 Soul Infinity Plus
2017, September. Released 2017, September
Status
V3 Viper
Discontinued
X4 Soul Infinity Plus
Discontinued
Dimensions
V3 Viper
148.3 x 71.8 x 8.1 mm (5.84 x 2.83 x 0.32 in)
X4 Soul Infinity Plus
158.7 x 75.2 x 8 mm (6.25 x 2.96 x 0.31 in)
Weight
V3 Viper
143.6 g (5.08 oz)
X4 Soul Infinity Plus
156 g (5.50 oz)
SIM
V3 Viper
Nano-SIM + Micro-SIM
X4 Soul Infinity Plus
Nano-SIM + Nano-SIM
Type
V3 Viper
IPS LCD
X4 Soul Infinity Plus
IPS LCD
Size
V3 Viper
5.5 inches, 78.1 cm2 (~73.3% screen-to-body ratio)
X4 Soul Infinity Plus
6.0 inches, 92.9 cm2 (~77.8% screen-to-body ratio)
Resolution
V3 Viper
720 x 1440 pixels, 18:9 ratio (~293 ppi density)
X4 Soul Infinity Plus
1080 x 2160 pixels, 18:9 ratio (~402 ppi density)
Protection
V3 Viper
Corning Gorilla Glass 3
X4 Soul Infinity Plus
Corning Gorilla Glass (unspecified version)
OS
V3 Viper
Android 8.0 (Oreo)
X4 Soul Infinity Plus
Android 7.1 (Nougat)
Chipset
V3 Viper
Mediatek MT6737 (28 nm)
X4 Soul Infinity Plus
Mediatek MT6757 Helio P25 (16 nm)
CPU
V3 Viper
Quad-core 1.3 GHz Cortex-A53
X4 Soul Infinity Plus
Octa-core (4x2.4 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
GPU
V3 Viper
Mali-T720MP2
X4 Soul Infinity Plus
Mali-T880MP2
Card slot
V3 Viper
microSDXC (uses shared SIM slot)
X4 Soul Infinity Plus
microSDXC (uses shared SIM slot)
Internal
V3 Viper
32GB 3GB RAM
X4 Soul Infinity Plus
64GB 6GB RAM
Other
V3 Viper
eMMC 5.0
X4 Soul Infinity Plus
-
Single
V3 Viper
13 MP, AF
X4 Soul Infinity Plus
-
Features
V3 Viper
LED flash, HDR
X4 Soul Infinity Plus
Dual-LED flash, panorama, HDR
Video
V3 Viper
1080p@30fps
X4 Soul Infinity Plus
4K@30fps, 1080p@30fps
Dual
V3 Viper
-
X4 Soul Infinity Plus
13 MP, 1/3.1", 1.12µm, PDAF Auxiliary lens
Single
V3 Viper
13 MP
X4 Soul Infinity Plus
13 MP
Features
V3 Viper
LED flash
X4 Soul Infinity Plus
LED flash
Video
V3 Viper
X4 Soul Infinity Plus
1080p@30fps
Loudspeaker
V3 Viper
Yes
X4 Soul Infinity Plus
Yes
3.5mm jack
V3 Viper
Yes
X4 Soul Infinity Plus
Yes
WLAN
V3 Viper
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X4 Soul Infinity Plus
Wi-Fi 802.11 a/b/g/n
Bluetooth
V3 Viper
4.2, A2DP, LE
X4 Soul Infinity Plus
4.0, A2DP, EDR, LE
Positioning
V3 Viper
GPS
X4 Soul Infinity Plus
GPS
NFC
V3 Viper
No
X4 Soul Infinity Plus
No
Infrared port
V3 Viper
Yes
X4 Soul Infinity Plus
-
Radio
V3 Viper
FM radio
X4 Soul Infinity Plus
FM radio
USB
V3 Viper
microUSB 2.0
X4 Soul Infinity Plus
USB Type-C 2.0
Sensors
V3 Viper
Fingerprint (rear-mounted), accelerometer, proximity, compass
X4 Soul Infinity Plus
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
V3 Viper
Li-Po 3000 mAh, non-removable
X4 Soul Infinity Plus
Li-Po 3050 mAh, non-removable
Colors
V3 Viper
Black, Silver, Gold
X4 Soul Infinity Plus
Black
SAR EU
V3 Viper
1.26 W/kg (head)
X4 Soul Infinity Plus
1.65 W/kg (head)
Price
V3 Viper
About 220 EUR
X4 Soul Infinity Plus
About 450 EUR