Screen size
Armor X31Winner: 6.6"+13%
Armor X8i5.7"
Quick verdict
Armor X31 leads the measured specs 13-2.
Measured wins
Armor X31
13
spec wins
Overall winner
Ties
6
equal specs
Armor X8i
2
spec wins
Screen size
Technology
Armor X31
GSM / CDMA / HSPA / LTE
Armor X8i
GSM / HSPA / LTE
2G bands
Armor X31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Armor X8i
GSM 850 / 900 / 1800 / 1900
3G bands
Armor X31
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
Armor X8i
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Armor X31
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Armor X8i
1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28
Speed
Armor X31
HSPA, LTE
Armor X8i
HSPA 21.1/5.76 Mbps, LTE Cat7 300/150 Mbps
Announced
Armor X31
2025, April
Armor X8i
2021, September 23
Status
Armor X31
Available. Released 2025, April
Armor X8i
Available. Released 2021, September 23
Dimensions
Armor X31
173.8 x 82 x 13.7 mm (6.84 x 3.23 x 0.54 in)
Armor X8i
160.3 x 79 x 13.8 mm (6.31 x 3.11 x 0.54 in)
Weight
Armor X31
305.5 g (10.79 oz)
Armor X8i
256 g (9.03 oz)
SIM
Armor X31
Nano-SIM + Nano-SIM
Armor X8i
Nano-SIM + Nano-SIM
Other
Armor X31
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 2m MIL-STD-810H compliant Dedicated flashlight 120 lm
Armor X8i
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 1.2m MIL-STD-810G compliant
Type
Armor X31
IPS LCD, 90Hz, 600 nits
Armor X8i
IPS LCD
Size
Armor X31
6.56 inches, 103.4 cm2 (~72.5% screen-to-body ratio)
Armor X8i
5.7 inches, 83.8 cm2 (~66.2% screen-to-body ratio)
Resolution
Armor X31
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Armor X8i
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
Protection
Armor X31
Corning Gorilla Glass 5, Mohs level 4
Armor X8i
-
OS
Armor X31
Android 14
Armor X8i
Android 11
Chipset
Armor X31
Mediatek Helio G91 (12 nm)
Armor X8i
Mediatek MT6762D Helio A25 (12 nm)
CPU
Armor X31
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Armor X8i
Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)
GPU
Armor X31
Mali-G52 MC2
Armor X8i
PowerVR GE8320
Card slot
Armor X31
microSDXC (dedicated slot)
Armor X8i
microSDXC (uses shared SIM slot)
Internal
Armor X31
128GB 6GB RAM
Armor X8i
32GB 3GB RAM
Other
Armor X31
UFS 2.1
Armor X8i
eMMC 5.1
Triple
Armor X31
48 MP, f/1.8, (wide), 0.8µm, PDAF 20 MP, f/1.8, (night vision), 2 infrared lights 2 MP (macro)
Armor X8i
13 MP, f/2.2, (wide), AF Auxiliary lenses
Features
Armor X31
LED flash, HDR, panorama
Armor X8i
Dual-LED flash, HDR, panorama
Video
Armor X31
1440p@30fps, 1080p@30fps
Armor X8i
1080p@30fps
Single
Armor X31
16 MP, f/2.3, (wide), 1.0µm
Armor X8i
8 MP, f/2.4
Video
Armor X31
1080p@30fps
Armor X8i
1080p@30fps
Loudspeaker
Armor X31
Yes
Armor X8i
Yes
3.5mm jack
Armor X31
Yes
Armor X8i
Yes
WLAN
Armor X31
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Armor X8i
Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct
Bluetooth
Armor X31
5.2, A2DP, LE
Armor X8i
5.0, A2DP, LE
Positioning
Armor X31
GPS, GLONASS, GALILEO, BDS
Armor X8i
GPS, GLONASS, GALILEO, BDS
NFC
Armor X31
Yes
Armor X8i
Yes
Infrared port
Armor X31
Yes
Armor X8i
-
Radio
Armor X31
Wireless FM radio
Armor X8i
FM radio, RDS, recording
USB
Armor X31
USB Type-C 2.0, OTG
Armor X8i
USB Type-C 2.0
Sensors
Armor X31
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Armor X8i
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
Armor X31
Li-Po 6050 mAh
Armor X8i
Li-Po 5080 mAh
Charging
Armor X31
18W wired
Armor X8i
10W wired
Colors
Armor X31
Black, Black/Orange, Black/Green
Armor X8i
Black, Orange, Red
Price
Armor X31
About 130 EUR
Armor X8i
About 150 EUR