Screen size
Soul X7 Pro6.5"
V4 Viper ProWinner: 6.8"+4%
Quick verdict
Soul X7 Pro leads the measured specs 11-2.
Measured wins
Soul X7 Pro
11
spec wins
Overall winner
Ties
5
equal specs
V4 Viper Pro
2
spec wins
Screen size
Technology
Soul X7 Pro
GSM / HSPA / LTE
V4 Viper Pro
GSM / HSPA / LTE
2G bands
Soul X7 Pro
GSM 850 / 900 / 1800 / 1900
V4 Viper Pro
GSM 850 / 900 / 1800 / 1900
3G bands
Soul X7 Pro
HSDPA 850 / 900 / 1900 / 2100
V4 Viper Pro
HSDPA 900 / 2100
4G bands
Soul X7 Pro
1, 2, 3, 5, 8, 20, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
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
V4 Viper Pro
1, 3, 7, 20, 38
Speed
Soul X7 Pro
HSPA 42.2/11.5 Mbps, LTE Cat7 300/100 Mbps
V4 Viper Pro
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
Soul X7 Pro
2020, May 26. Released 2020, May 26
V4 Viper Pro
2020, January. Released 2020, January
Status
Soul X7 Pro
Discontinued
V4 Viper Pro
Discontinued
Dimensions
Soul X7 Pro
161.9 x 76.8 x 8.3 mm (6.37 x 3.02 x 0.33 in)
V4 Viper Pro
171 x 82 x 8.8 mm (6.73 x 3.23 x 0.35 in)
Weight
Soul X7 Pro
193 g (6.81 oz)
V4 Viper Pro
191.6 g (6.77 oz)
SIM
Soul X7 Pro
Nano-SIM + Micro-SIM
V4 Viper Pro
Nano-SIM + Nano-SIM
Type
Soul X7 Pro
IPS LCD
V4 Viper Pro
IPS LCD
Size
Soul X7 Pro
6.53 inches, 104.7 cm2 (~84.2% screen-to-body ratio)
V4 Viper Pro
6.8 inches, 115.4 cm2 (~82.3% screen-to-body ratio)
Resolution
Soul X7 Pro
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
V4 Viper Pro
640 x 1352 pixels, 19:9 ratio (~220 ppi density)
Protection
Soul X7 Pro
Corning Gorilla Glass
V4 Viper Pro
-
OS
Soul X7 Pro
Android 9.0 (Pie)
V4 Viper Pro
Android 9.0 (Pie)
Chipset
Soul X7 Pro
Qualcomm SDM630 Snapdragon 630 (14 nm)
V4 Viper Pro
Mediatek MT6739 (28 nm)
CPU
Soul X7 Pro
Octa-core (4x2.2 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
V4 Viper Pro
Quad-core 1.3 GHz Cortex-A53
GPU
Soul X7 Pro
Adreno 508
V4 Viper Pro
PowerVR GE8100
Card slot
Soul X7 Pro
microSDXC (uses shared SIM slot)
V4 Viper Pro
microSDXC (uses shared SIM slot)
Internal
Soul X7 Pro
64GB 4GB RAM
V4 Viper Pro
32GB 2GB RAM
Other
Soul X7 Pro
eMMC 5.1
V4 Viper Pro
eMMC 5.1
Quad
Soul X7 Pro
13 MP, f/1.8, (wide), 1/3.1", 1.12µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
V4 Viper Pro
-
Features
Soul X7 Pro
LED flash, HDR, panorama
V4 Viper Pro
LED flash
Video
Soul X7 Pro
4K@30fps, 1080p@30fps
V4 Viper Pro
1080p@30fps
Dual
Soul X7 Pro
-
V4 Viper Pro
13 MP, AF Auxiliary lens
Single
Soul X7 Pro
16 MP, (wide), 1/3.06" 1.0µm
V4 Viper Pro
8 MP
Video
Soul X7 Pro
1080p@30fps
V4 Viper Pro
1080p@30fps
Loudspeaker
Soul X7 Pro
Yes
V4 Viper Pro
Yes
3.5mm jack
Soul X7 Pro
Yes
V4 Viper Pro
Yes
WLAN
Soul X7 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
V4 Viper Pro
Wi-Fi 802.11 b/g/n
Bluetooth
Soul X7 Pro
5.1, A2DP, LE
V4 Viper Pro
4.0, A2DP
Positioning
Soul X7 Pro
GPS, GLONASS
V4 Viper Pro
GPS, GLONASS
NFC
Soul X7 Pro
No
V4 Viper Pro
No
Radio
Soul X7 Pro
FM radio
V4 Viper Pro
FM radio
USB
Soul X7 Pro
USB Type-C 3.0
V4 Viper Pro
microUSB 2.0
Sensors
Soul X7 Pro
Fingerprint (rear-mounted), accelerometer, proximity, compass
V4 Viper Pro
Fingerprint (rear-mounted), accelerometer, proximity
Type
Soul X7 Pro
Li-Po 4000 mAh
V4 Viper Pro
Li-Po 3500 mAh
Charging
Soul X7 Pro
18W wired
V4 Viper Pro
10W wired
Colors
Soul X7 Pro
Black Desire
V4 Viper Pro
Dark Grey
SAR EU
Soul X7 Pro
1.12 W/kg (head)
V4 Viper Pro
1.20 W/kg (head)
Price
Soul X7 Pro
About 230 EUR
V4 Viper Pro
About 170 EUR