Screen size
V4 ViperWinner: 5.7"+3.5%
X1 Xtreme5.5"
Quick verdict
X1 Xtreme leads the measured specs 8-6.
Measured wins
V4 Viper
6
spec wins
Ties
3
equal specs
X1 Xtreme
8
spec wins
Overall winner
Screen size
Technology
V4 Viper
GSM / HSPA / LTE
X1 Xtreme
GSM / HSPA
2G bands
V4 Viper
GSM 850 / 900 / 1800 / 1900
X1 Xtreme
GSM 900 / 1800 / 1900
3G bands
V4 Viper
HSDPA 900 / 2100
X1 Xtreme
HSDPA 900 / 2100
4G bands
V4 Viper
1, 3, 7, 8, 20, 38
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
X1 Xtreme
-
Speed
V4 Viper
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
X1 Xtreme
HSPA
Announced
V4 Viper
2019, September. Released 2019, September
X1 Xtreme
2014, February. Released 2014, February
Status
V4 Viper
Discontinued
X1 Xtreme
Discontinued
Dimensions
V4 Viper
145.8 x 70.9 x 8.5 mm (5.74 x 2.79 x 0.33 in)
X1 Xtreme
150.6 x 75 x 9.7 mm (5.93 x 2.95 x 0.38 in)
Weight
V4 Viper
138 g (4.87 oz)
X1 Xtreme
150.5 g (5.29 oz)
SIM
V4 Viper
Nano-SIM + Nano-SIM
X1 Xtreme
Micro-SIM
Type
V4 Viper
IPS LCD
X1 Xtreme
IPS LCD
Size
V4 Viper
5.7 inches, 81.1 cm2 (~78.4% screen-to-body ratio)
X1 Xtreme
5.5 inches, 83.4 cm2 (~73.8% screen-to-body ratio)
Resolution
V4 Viper
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
X1 Xtreme
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection
V4 Viper
-
X1 Xtreme
Corning Gorilla Glass 3
OS
V4 Viper
Android 9.0 (Pie)
X1 Xtreme
Android 4.2.2 (Jelly Bean)
Chipset
V4 Viper
Mediatek MT6761 Helio A22 (12 nm)
X1 Xtreme
Qualcomm MSM8274 Snapdragon 800 (28 nm)
CPU
V4 Viper
Quad-core 2.0 GHz Cortex-A53
X1 Xtreme
Quad-core 2.15 GHz Krait 400
GPU
V4 Viper
PowerVR GE8320
X1 Xtreme
Adreno 330
Card slot
V4 Viper
microSDXC (uses shared SIM slot)
X1 Xtreme
No
Internal
V4 Viper
16GB 2GB RAM
X1 Xtreme
32GB 3GB RAM
Other
V4 Viper
eMMC 5.1
X1 Xtreme
eMMC 4.5
Dual
V4 Viper
8 MP, AF Auxiliary lens
X1 Xtreme
-
Features
V4 Viper
LED flash
X1 Xtreme
LED flash, HDR, panorama
Video
V4 Viper
1080p@30fps
X1 Xtreme
1080p@30fps
Single
V4 Viper
-
X1 Xtreme
16 MP, AF
Single
V4 Viper
5 MP
X1 Xtreme
8 MP
Video
V4 Viper
X1 Xtreme
Loudspeaker
V4 Viper
Yes
X1 Xtreme
Yes
3.5mm jack
V4 Viper
Yes
X1 Xtreme
Yes
Other
V4 Viper
-
X1 Xtreme
Yamaha audio amplifier
WLAN
V4 Viper
Wi-Fi 802.11 b/g/n
X1 Xtreme
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
V4 Viper
4.1, A2DP, LE
X1 Xtreme
4.0, A2DP, EDR
Positioning
V4 Viper
GPS, GLONASS
X1 Xtreme
GPS, GLONASS
NFC
V4 Viper
No
X1 Xtreme
Yes
Radio
V4 Viper
FM radio
X1 Xtreme
FM radio
USB
V4 Viper
microUSB 2.0
X1 Xtreme
microUSB 2.0
Sensors
V4 Viper
Fingerprint (rear-mounted), accelerometer, proximity
X1 Xtreme
Accelerometer, proximity, compass
Type
V4 Viper
Li-Po 2700 mAh, non-removable
X1 Xtreme
Li-Po 2500 mAh, non-removable
Stand-by
V4 Viper
-
X1 Xtreme
Up to 250 h
Talk time
V4 Viper
-
X1 Xtreme
Up to 8 h 20 min
Colors
V4 Viper
Blue, Red
X1 Xtreme
Black
SAR EU
V4 Viper
1.13 W/kg (head)
X1 Xtreme
-
Price
V4 Viper
About 100 EUR
X1 Xtreme
About 470 EUR