Xiaomi Mi 4 vs Ulefone Armor X31 Pro

Xiaomi Mi 4

Xiaomi Mi 4

Announced On:July, 2014

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Ulefone Armor X31 Pro

Ulefone Armor X31 Pro

Announced On:December, 2024

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Xiaomi Mi 4 vs Ulefone Armor X31 Pro

Xiaomi Mi 4	Ulefone Armor X31 Pro

Price
EUR: €230	EUR: €190
USD: N/A	USD: N/A
GBP: N/A	GBP: N/A
INR: N/A	INR: N/A
PKR: N/A	PKR: N/A

Form Factor
Body
Candybar, Touchscreen	Candybar, Touchscreen
Dimensions
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)	173.8 x 82 x 13.7 mm (6.84 x 3.23 x 0.54 in)
Weight
149 g (5.26 oz)	306 g (10.79 oz)
Build
Glass front, plastic back, aluminum frame	IP68/IP69K dust/water resistant (up to 1.5m for 30 min) Drop-to-concrete resistance from up to 2m MIL-STD-810H compliant Dedicated flashlight 120 lm
Colors
Black, White	Black, Black/Orange, Black/Green
Models
2014215

Type
Display
IPS LCD	IPS LCD, 120Hz, 800 nits (HBM)
Size
5.0 inches, 68.9 cm² (~72.3% screen-to-body ratio)	6.56 inches, 103.4 cm² (~72.5% screen-to-body ratio)
Resolution
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)	720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Multitouch
Yes
Protection
	Corning Gorilla Glass 5

Technology
Network
GSM / CDMA / HSPA / EVDO / LTE	GSM / CDMA / HSPA / LTE / 5G
2G Bands
GSM 850 / 900 / 1800 / 1900 all versions	GSM 850 / 900 / 1800 / 1900
3G Bands
TD-SCDMA 4G model	HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Bands
38, 39, 40 4G model	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 66, 71
5G Bands
	1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA

Alert Types
Notifications
Vibration, MP3, WAV ringtones

Internal Memory
Memory
16GB ROM, 2GB RAM 64GB ROM, 3GB RAM	256GB ROM, 8GB RAM
Storage Type
eMMC 5.0
Card Slot
No	microSDXC (dedicated slot)

GPRS
Connectivity
Yes
EDGE
Yes
Speed
HSPA, LTE, EV-DO Rev.A 3.1 Mbps	HSPA, LTE
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
4.0, A2DP	5.2, A2DP, LE
USB
microUSB 2.0, OTG	USB Type-C 2.0
Infrared Port
Yes	Yes
GPS
Yes, with A-GPS, GLONASS, BDS
NFC
No	Yes

Main Camera
Camera
13 MP, f/1.8, 1/3.1", 1.12Âµm, AF	Primary: 64 MP, f/1.9, (wide), 0.8µm, PDAF Secondary: 25 MP, f/1.8, (night vision), 2 infrared lights Third: 2 MP, (macro)
Camera Features
LED flash, panorama, HDR	LED flash, HDR, panorama
Video
4K@30fps, 1080p@30fps, 720p@120fps, HDR	1440p@30fps, 1080p@30fps
Selfie Camera
8 MP, f/1.8 Video: 1080p@30fps	16 MP, f/2.3, (wide), 1.0µm Video: 1080p@30fps

Audio Format Support
Multimedia
MP3/WAV/eAAC+/FLAC
Video Format Support
MP4/DivX/XviD/WMV/H.264
Radio
FM radio	Wireless FM radio

Operating System (OS)
Software
Android OS, v4.4.3 (KitKat)	Android OS, v14
Upgradable
Upgradable to 6.0.1 (Marshmallow)
UI
MIUI 10
Browser
HTML5
Messaging
SMS(threaded view), MMS, Email, Push Email, IM

Chipset
Hardware
Qualcomm MSM8974AC Snapdragon 801 (28 nm)	Mediatek Dimensity 6300 (6 nm)
CPU
Quad-core 2.5 GHz Krait 400	Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Adreno 330	Mali-G57 MC2
Sensors
Accelerometer, gyro, proximity, compass, barometer	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
SIM
Micro-SIM	Nano-SIM + Nano-SIM
Speakers
Yes	Yes
Audio Jack
3.5 mm	3.5 mm
TV Out
Yes (via mhl a/v link)

Battery Type
Battery
Li-Ion 3080 mAh, non-removable	Li-Po 6050 mAh
Standby
Up to 280 h (3G)
Charging
18W wired, QC2	18W wired

SAR US
Misc
1.36 W/kg (head)

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