Screen size
Armor 23 UltraWinner: 6.8"+1.6%
Armor 28 Pro6.7"
Quick verdict
Armor 23 Ultra leads the measured specs 8-5.
Measured wins
Armor 23 Ultra
8
spec wins
Overall winner
Ties
8
equal specs
Armor 28 Pro
5
spec wins
Screen size
Technology
Armor 23 Ultra
GSM / HSPA / LTE / 5G
Armor 28 Pro
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands
Armor 23 Ultra
GSM 850 / 900 / 1800 / 1900
Armor 28 Pro
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
Armor 23 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Armor 28 Pro
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1x
4G bands
Armor 23 Ultra
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
equal specsBattery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
Armor 28 Pro
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
Armor 23 Ultra
1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6
Armor 28 Pro
1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6
Speed
Armor 23 Ultra
HSPA, LTE, 5G
Armor 28 Pro
HSPA, LTE, 5G
Announced
Armor 23 Ultra
2023, December 21
Armor 28 Pro
2025, May
Status
Armor 23 Ultra
Available. Released 2023, December 21
Armor 28 Pro
Available. Released 2025, May 12
Dimensions
Armor 23 Ultra
177.4 x 81.5 x 12.8 mm (6.98 x 3.21 x 0.50 in)
Armor 28 Pro
174.2 x 83.6 x 19.4 mm (6.86 x 3.29 x 0.76 in)
Weight
Armor 23 Ultra
332 g (11.71 oz)
Armor 28 Pro
450 g (0.99 lb)
SIM
Armor 23 Ultra
Nano-SIM + Nano-SIM
Armor 28 Pro
Nano-SIM + Nano-SIM
Other
Armor 23 Ultra
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min) Drop resistant up to 1.8m MIL-STD-810H compliant
Armor 28 Pro
IP68 dust tight and water resistant (immersible up to 2m for 30 min) Drop resistant up to 2m MIL-STD-810H compliant Accessory connector (ulefone endoscope, microscope)
Type
Armor 23 Ultra
IPS LCD, 120Hz
Armor 28 Pro
AMOLED, 1B colors, 120Hz, 2200 nits (peak)
Size
Armor 23 Ultra
6.78 inches, 109.2 cm2 (~75.5% screen-to-body ratio)
Armor 28 Pro
6.67 inches, 107.4 cm2 (~73.8% screen-to-body ratio)
Resolution
Armor 23 Ultra
1080 x 2460 pixels (~396 ppi density)
Armor 28 Pro
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
Armor 23 Ultra
Corning Gorilla Glass Victus, Mohs level 4
Armor 28 Pro
Corning Gorilla Glass Victus, Mohs level 4
Other
Armor 23 Ultra
-
Armor 28 Pro
Secondary display on the back: AMOLED, 1.04 inches, 340 x 340 pixels, 600 nits (peak)
OS
Armor 23 Ultra
Android 13
Armor 28 Pro
Android 15
Chipset
Armor 23 Ultra
Mediatek Dimensity 8020 (6 nm)
Armor 28 Pro
Mediatek Dimensity 7300 (4 nm)
CPU
Armor 23 Ultra
Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Armor 28 Pro
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
Armor 23 Ultra
Mali-G77 MC9
Armor 28 Pro
Mali-G615 MC2
Card slot
Armor 23 Ultra
microSDXC (dedicated slot)
Armor 28 Pro
microSDXC (dedicated slot)
Internal
Armor 23 Ultra
512GB 12GB RAM
Armor 28 Pro
512GB 16GB RAM
Other
Armor 23 Ultra
UFS 3.1
Armor 28 Pro
UFS 3.1
Quad
Armor 23 Ultra
50 MP, f/1.7, (wide), 1/1.31", 1.2µm, PDAF 8 MP, (telephoto), 3.2x optical zoom 50 MP, f/2.2, 117˚ (ultrawide) 64 MP, f/1.8, (night vision), 2 infrared night vision lights
Armor 28 Pro
-
Features
Armor 23 Ultra
Dual-LED flash, HDR, panorama
Armor 28 Pro
Quad-LED flash, HDR, panorama
Video
Armor 23 Ultra
4K@60fps, 1080p@30fps
Armor 28 Pro
4K@30fps, 1080p@30/60fps
Triple
Armor 23 Ultra
-
Armor 28 Pro
50 MP, f/1.9, (wide), 1.0"-type, 1.6µm, dual pixel PDAF 64 MP, f/1.8, (night vision), 1/2.0", 0.7µm, 4 infrared lights 50 MP, f/2.2, 117˚ (ultrawide), 1/2.76", 0.64µm
Single
Armor 23 Ultra
50 MP, f/2.3, (wide), 1.0µm
Armor 28 Pro
50 MP, f/2.5, (wide), 1/2.76", 0.64µm
Video
Armor 23 Ultra
1080p@30fps
Armor 28 Pro
1080p@30fps
Loudspeaker
Armor 23 Ultra
Yes
Armor 28 Pro
Yes
3.5mm jack
Armor 23 Ultra
No
Armor 28 Pro
Yes
WLAN
Armor 23 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Armor 28 Pro
Wi-Fi 802.11 a/b/g/n/ac/6/7, tri-band
Bluetooth
Armor 23 Ultra
5.1, A2DP, LE
Armor 28 Pro
5.4, A2DP, LE
Positioning
Armor 23 Ultra
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
Armor 28 Pro
GPS, GALILEO, GLONASS, QZSS, BDS, NavIC
NFC
Armor 23 Ultra
Yes
Armor 28 Pro
Yes
Infrared port
Armor 23 Ultra
Yes
Armor 28 Pro
Yes
Radio
Armor 23 Ultra
Wireless FM radio, RDS, recording
Armor 28 Pro
Wireless FM radio
USB
Armor 23 Ultra
USB Type-C 3.1, OTG
Armor 28 Pro
USB Type-C 2.0, OTG, accessory connector pins
Sensors
Armor 23 Ultra
Fingerprint (side-mounted), accelerometer, proximity, compass, gyro, barometer
Armor 28 Pro
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Other
Armor 23 Ultra
Emergency SOS via satellite (Bullitt Satellite Connect service)
Armor 28 Pro
-
Type
Armor 23 Ultra
Li-Po 5280 mAh
Armor 28 Pro
Li-Ion 10600 mAh
Charging
Armor 23 Ultra
120W wired, 60% in 10 min 50W wireless Reverse wireless
Armor 28 Pro
120W wired, PPS, 40% in 10 min 50W wireless, 35% in 30 min 10W reverse wired 5W reverse wireless
Colors
Armor 23 Ultra
Elite Black, Umbra Orange
Armor 28 Pro
Black
Price
Armor 23 Ultra
About 400 EUR
Armor 28 Pro
$ 399.99