Screen size
V2 Viper S5.5"
X5 SoulWinner: 5.9"+6.1%
Quick verdict
X5 Soul leads the measured specs 6-3.
Measured wins
V2 Viper S
3
spec wins
Ties
8
equal specs
X5 Soul
6
spec wins
Overall winner
Screen size
Technology
V2 Viper S
GSM / HSPA / LTE
X5 Soul
GSM / HSPA / LTE
2G bands
V2 Viper S
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
X5 Soul
GSM 850 / 900 / 1800 / 1900
3G bands
V2 Viper S
HSDPA 900 / 2100
X5 Soul
HSDPA 850 / 900 / 1900 / 2100
4G bands
V2 Viper S
1, 3, 7, 20, 38
Resolution
Refresh 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
X5 Soul
1, 3, 5, 7, 8, 20, 38, 39, 40, 41
Speed
V2 Viper S
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
X5 Soul
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps
Announced
V2 Viper S
2016, October. Released 2016, October
X5 Soul
2018, August. Released 2018, August
Status
V2 Viper S
Discontinued
X5 Soul
Discontinued
Dimensions
V2 Viper S
146 x 74.5 x 8.2 mm (5.75 x 2.93 x 0.32 in)
X5 Soul
149 x 72 x 7.9 mm (5.87 x 2.83 x 0.31 in)
Weight
V2 Viper S
141.6 g (5.01 oz)
X5 Soul
185 g (6.53 oz)
SIM
V2 Viper S
Dual SIM (Micro-SIM, dual stand-by)
X5 Soul
Nano-SIM + Micro-SIM
Type
V2 Viper S
IPS LCD
X5 Soul
IPS LCD
Size
V2 Viper S
5.5 inches, 83.4 cm2 (~76.7% screen-to-body ratio)
X5 Soul
5.86 inches, 85.7 cm2 (~79.9% screen-to-body ratio)
Resolution
V2 Viper S
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
X5 Soul
720 x 1520 pixels, 19:9 ratio (~287 ppi density)
Protection
V2 Viper S
Scratch-resistant glass
X5 Soul
-
OS
V2 Viper S
Android 6.0 (Marshmallow)
X5 Soul
Android 8.1 (Oreo)
Chipset
V2 Viper S
Mediatek MT6753 (28 nm)
X5 Soul
Mediatek MT6762 Helio P22 (12 nm)
CPU
V2 Viper S
Octa-core 1.3 GHz Cortex-A53
X5 Soul
Octa-core 2.0 GHz Cortex-A53
GPU
V2 Viper S
Mali-T720
X5 Soul
PowerVR GE8320
Card slot
V2 Viper S
microSDXC
X5 Soul
microSDXC (uses shared SIM slot)
Internal
V2 Viper S
32GB 3GB RAM
X5 Soul
32GB 4GB RAM
Other
V2 Viper S
-
X5 Soul
eMMC 5.1
Single
V2 Viper S
16 MP, f/2.0, PDAF
X5 Soul
-
Features
V2 Viper S
LED flash, HDR
X5 Soul
LED flash, HDR, panorama
Video
V2 Viper S
1080p@30fps
X5 Soul
1080p@30fps
Dual
V2 Viper S
-
X5 Soul
16 MP, f/2.0, PDAF Auxiliary lens
Single
V2 Viper S
5 MP
X5 Soul
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video
V2 Viper S
X5 Soul
Loudspeaker
V2 Viper S
Yes
X5 Soul
Yes
3.5mm jack
V2 Viper S
Yes
X5 Soul
Yes
WLAN
V2 Viper S
Wi-Fi 802.11 b/g/n
X5 Soul
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct
Bluetooth
V2 Viper S
4.0, A2DP, EDR
X5 Soul
4.2, A2DP, LE
Positioning
V2 Viper S
GPS
X5 Soul
GPS, GLONASS
NFC
V2 Viper S
No
X5 Soul
No
Infrared port
V2 Viper S
Yes
X5 Soul
-
Radio
V2 Viper S
FM radio
X5 Soul
FM radio
USB
V2 Viper S
microUSB 2.0
X5 Soul
USB Type-C 2.0
Sensors
V2 Viper S
Accelerometer, proximity, compass
X5 Soul
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
V2 Viper S
Li-Po 3000 mAh, removable
X5 Soul
Li-Po 3000 mAh, non-removable
Stand-by
V2 Viper S
Up to 210 h (3G)
X5 Soul
-
Talk time
V2 Viper S
Up to 14 h (3G)
X5 Soul
-
Colors
V2 Viper S
Gray, Gold
X5 Soul
Black
Models
V2 Viper S
V2_Viper_S
X5 Soul
X5_Soul
SAR EU
V2 Viper S
-
X5 Soul
0.89 W/kg (head)