Ulefone Armor 28 Ultra vs Ulefone Armor X31

Ulefone Armor 28 Ultra

Ulefone Armor 28 Ultra

Announced On:February, 2025

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Ulefone Armor X31

Ulefone Armor X31

Announced On:April, 2025

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Ulefone Armor 28 Ultra vs Ulefone Armor X31

Ulefone Armor 28 Ultra	Ulefone Armor X31

Price
EUR: €800	EUR: €130
USD: $750	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
174.2 x 83.6 x 19.4 mm (6.86 x 3.29 x 0.76 in)	173.8 x 82 x 13.7 mm (6.84 x 3.23 x 0.54 in)
Weight
450 g (0.99 lb)	305.5 g (10.79 oz)
Build
IP68/IP69K dust tight and water resistant (high pressure water jets, immersible up to 2m for 30 min) Drop resistant up to 2m MIL-STD-810H compliant Accessory connector (ulefone endoscope, microscope)	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
Colors
Black	Black, Black/Orange, Black/Green

Type
Display
AMOLED, 1B colors, 120Hz, 600 nits (HBM), 2200 nits (peak)	IPS LCD, 90Hz, 600 nits
Size
6.67 inches, 107.4 cm² (~73.8% screen-to-body ratio)	6.56 inches, 103.4 cm² (~72.5% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)	720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Protection
Corning Gorilla Glass Victus, Mohs level 4	Corning Gorilla Glass 5, Mohs level 4
Secondary
Secondary display on the back: AMOLED, 1.04 inches, 340 x 340 pixels, 500 nits (HBM)
Brightness
Secondary display on the back: AMOLED, 1.04 inches, 340 x 340 pixels, 500 nits (HBM)

Technology
Network
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G	GSM / CDMA / HSPA / LTE
2G Bands
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 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/Sub6

Internal Memory
Memory
1TB ROM, 16GB RAM	128GB ROM, 6GB RAM
Storage Type
UFS 4.0	UFS 2.1
Card Slot
microSDXC (dedicated slot)	microSDXC (dedicated slot)

Speed
Connectivity
HSPA, LTE, 5G	HSPA, LTE
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, tri-band	Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.4, A2DP, LE	5.2, A2DP, LE
USB
USB Type-C 3.2 Gen2, Display Port 1.4, OTG, accessory connector pins	USB Type-C 2.0, OTG
Infrared Port
Yes	Yes
NFC
Yes	Yes

Main Camera
Camera
Primary: 50 MP, f/1.9, (wide), 1.0"-type, 1.6µm, dual pixel PDAF Secondary: 64 MP, f/1.8, (night vision), 1/2.0", 0.7µm, 4 infrared lights Third: 50 MP, f/2.2, 117" (ultrawide), 1/2.76", 0.64µm	Primary: 48 MP, f/1.8, (wide), 0.8µm, PDAF Secondary: 20 MP, f/1.8, (night vision), 2 infrared lights Third: 2 MP (macro)
Camera Features
Quad-LED flash, HDR, panorama	LED flash, HDR, panorama
Video
8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS	1440p@30fps, 1080p@30fps
Selfie Camera
50 MP, f/2.5, (wide), 1/2.76", 0.64µm Video: 1080p@30fps	16 MP, f/2.3, (wide), 1.0µm Video: 1080p@30fps

Radio
Multimedia
Wireless FM radio, RDS, recording	Wireless FM radio

Operating System (OS)
Software
Android OS, v14	Android OS, v14
Upgradable
Upgradable to Android 15

Chipset
Hardware
Mediatek Dimensity 9300+ (4 nm)	Mediatek Helio G91 (12 nm)
CPU
Octa-core (1x3.4 GHz Cortex-X4 & 3x2.85 GHz Cortex-X4 & 4x2.0 GHz Cortex-A720)	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
Immortalis-G720 MC12	Mali-G52 MC2
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
SIM
Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Speakers
Yes	Yes
Audio Jack
3.5 mm	3.5 mm

Battery Type
Battery
Li-Ion 10600 mAh	Li-Po 6050 mAh
Charging
120W wired, PPS, 40% in 10 min 50W wireless, 35% in 30 min 10W reverse wired	18W wired

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