Screen size
V3 Viper5.5"
X4 Soul Infinity ZWinner: 5.7"+3.5%
Quick verdict
V3 Viper leads the measured specs 5-3.
Measured wins
V3 Viper
5
spec wins
Overall winner
Ties
9
equal specs
X4 Soul Infinity Z
3
spec wins
Screen size
Technology
V3 Viper
GSM / HSPA / LTE
X4 Soul Infinity Z
GSM / HSPA / LTE
2G bands
V3 Viper
GSM 850 / 900 / 1800 / 1900
X4 Soul Infinity Z
GSM 900 / 1800
3G bands
V3 Viper
HSDPA 850 / 900 / 1900 / 2100
X4 Soul Infinity Z
HSDPA 900 / 2100
4G bands
V3 Viper
1, 3, 5, 8, 20, 38, 39, 40
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
Battery
equal specsWired 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 Z
1, 8, 38
Speed
V3 Viper
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
X4 Soul Infinity Z
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
V3 Viper
2018, January. Released 2018, February
X4 Soul Infinity Z
2017, September. Released 2017, September
Status
V3 Viper
Discontinued
X4 Soul Infinity Z
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 Z
152 x 72.6 x 8.5 mm (5.98 x 2.86 x 0.33 in)
Weight
V3 Viper
143.6 g (5.08 oz)
X4 Soul Infinity Z
155 g (5.47 oz)
SIM
V3 Viper
Nano-SIM + Micro-SIM
X4 Soul Infinity Z
Nano-SIM + Micro-SIM
Type
V3 Viper
IPS LCD
X4 Soul Infinity Z
IPS LCD
Size
V3 Viper
5.5 inches, 78.1 cm2 (~73.3% screen-to-body ratio)
X4 Soul Infinity Z
5.7 inches, 83.8 cm2 (~76.0% screen-to-body ratio)
Resolution
V3 Viper
720 x 1440 pixels, 18:9 ratio (~293 ppi density)
X4 Soul Infinity Z
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
Protection
V3 Viper
Corning Gorilla Glass 3
X4 Soul Infinity Z
-
OS
V3 Viper
Android 8.0 (Oreo)
X4 Soul Infinity Z
Android 7.0 (Nougat)
Chipset
V3 Viper
Mediatek MT6737 (28 nm)
X4 Soul Infinity Z
Mediatek MT6750T (28 nm)
CPU
V3 Viper
Quad-core 1.3 GHz Cortex-A53
X4 Soul Infinity Z
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
V3 Viper
Mali-T720MP2
X4 Soul Infinity Z
Mali-T860MP2
Card slot
V3 Viper
microSDXC (uses shared SIM slot)
X4 Soul Infinity Z
microSDXC (uses shared SIM slot)
Internal
V3 Viper
32GB 3GB RAM
X4 Soul Infinity Z
32GB 4GB RAM
Other
V3 Viper
eMMC 5.0
X4 Soul Infinity Z
eMMC 5.1
Single
V3 Viper
13 MP, AF
X4 Soul Infinity Z
-
Features
V3 Viper
LED flash, HDR
X4 Soul Infinity Z
LED flash, panorama, HDR
Video
V3 Viper
1080p@30fps
X4 Soul Infinity Z
1080p@30fps
Dual
V3 Viper
-
X4 Soul Infinity Z
13 MP, PDAF Auxiliary lens
Single
V3 Viper
13 MP
X4 Soul Infinity Z
8 MP
Features
V3 Viper
LED flash
X4 Soul Infinity Z
-
Video
V3 Viper
X4 Soul Infinity Z
Loudspeaker
V3 Viper
Yes
X4 Soul Infinity Z
Yes
3.5mm jack
V3 Viper
Yes
X4 Soul Infinity Z
Yes
WLAN
V3 Viper
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X4 Soul Infinity Z
Wi-Fi 802.11 b/g/n
Bluetooth
V3 Viper
4.2, A2DP, LE
X4 Soul Infinity Z
4.0, A2DP, EDR
Positioning
V3 Viper
GPS
X4 Soul Infinity Z
GPS
NFC
V3 Viper
No
X4 Soul Infinity Z
No
Infrared port
V3 Viper
Yes
X4 Soul Infinity Z
-
Radio
V3 Viper
FM radio
X4 Soul Infinity Z
FM radio
USB
V3 Viper
microUSB 2.0
X4 Soul Infinity Z
USB Type-C 2.0
Sensors
V3 Viper
Fingerprint (rear-mounted), accelerometer, proximity, compass
X4 Soul Infinity Z
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
V3 Viper
Li-Po 3000 mAh, non-removable
X4 Soul Infinity Z
Li-Po 3000 mAh, non-removable
Colors
V3 Viper
Black, Silver, Gold
X4 Soul Infinity Z
Night Sky, Mocha Gold, Steel Gray
SAR EU
V3 Viper
1.26 W/kg (head)
X4 Soul Infinity Z
1.28 W/kg (head)
Price
V3 Viper
About 220 EUR
X4 Soul Infinity Z
-