Screen size
Fire 3 Ultra5.5"
U11 ProWinner: 11.0"+50%
Quick verdict
Fire 3 Ultra leads the measured specs 8-5.
Measured wins
Fire 3 Ultra
8
spec wins
Overall winner
Ties
8
equal specs
U11 Pro
5
spec wins
Screen size
Technology
Fire 3 Ultra
GSM / HSPA / LTE
U11 Pro
No cellular connectivity
2G bands
Fire 3 Ultra
GSM 850 / 900 / 1800 / 1900
U11 Pro
N/A
3G bands
Fire 3 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
U11 Pro
N/A
4G bands
Fire 3 Ultra
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
U11 Pro
N/A
Speed
Fire 3 Ultra
HSPA, LTE
U11 Pro
-
GPRS
Fire 3 Ultra
-
U11 Pro
No
EDGE
Fire 3 Ultra
-
U11 Pro
No
Announced
Fire 3 Ultra
2025, August
U11 Pro
2025, April
Status
Fire 3 Ultra
Available. Released 2025, August
U11 Pro
Available. Released 2025, April
Dimensions
Fire 3 Ultra
162.5 x 77.4 x 17.8 mm (6.40 x 3.05 x 0.70 in)
U11 Pro
257.3 x 168.8 x 8.1 mm (10.13 x 6.65 x 0.32 in)
Weight
Fire 3 Ultra
290 g (10.23 oz)
U11 Pro
537 g (1.18 lb)
SIM
Fire 3 Ultra
Nano-SIM + Nano-SIM
U11 Pro
No
Other
Fire 3 Ultra
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 1.5m MIL-STD-810H compliant
U11 Pro
Stylus support
Type
Fire 3 Ultra
IPS LCD
U11 Pro
IPS LCD, 90Hz
Size
Fire 3 Ultra
5.5 inches, 78.1 cm2 (~62.1% screen-to-body ratio)
U11 Pro
11.0 inches, 350.9 cm2 (~80.8% screen-to-body ratio)
Resolution
Fire 3 Ultra
720 x 1440 pixels, 18:9 ratio (~293 ppi density)
U11 Pro
800 x 1280 pixels, 16:10 ratio (~137 ppi density)
Protection
Fire 3 Ultra
Mohs level 5
U11 Pro
Mohs level 5
OS
Fire 3 Ultra
Android 15
U11 Pro
Android 15
Chipset
Fire 3 Ultra
Unisoc T7200 (12 nm)
U11 Pro
Unisoc T7200 (12 nm)
CPU
Fire 3 Ultra
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
U11 Pro
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Fire 3 Ultra
Mali-G57 MP1
U11 Pro
Mali-G57 MP1
Card slot
Fire 3 Ultra
microSDXC (uses shared SIM slot)
U11 Pro
microSDXC (dedicated slot)
Internal
Fire 3 Ultra
256GB 6GB RAM
U11 Pro
256GB 6GB RAM
Other
Fire 3 Ultra
-
U11 Pro
eMMC 5.1
Dual
Fire 3 Ultra
16 MP, f/1.8, (wide), AF 20 MP, f/1.8, (night vision), infrared night vision light
U11 Pro
-
Features
Fire 3 Ultra
LED flash, HDR, panorama
U11 Pro
LED flash, HDR
Video
Fire 3 Ultra
1080p@30fps
U11 Pro
1080p@30fps
Single
Fire 3 Ultra
-
U11 Pro
13 MP, f/2.2, (wide), 1/3.1", AF
Single
Fire 3 Ultra
8 MP, f/2.0, (wide)
U11 Pro
5 MP, f/2.4, (wide), 1/5.0"
Features
Fire 3 Ultra
HDR
U11 Pro
-
Video
Fire 3 Ultra
720p@30fps
U11 Pro
720p@30fps
Loudspeaker
Fire 3 Ultra
Yes
U11 Pro
Yes, with stereo speakers
3.5mm jack
Fire 3 Ultra
Yes
U11 Pro
Yes
WLAN
Fire 3 Ultra
Wi-Fi 802.11 a/b/g/n/ac, dual-band
U11 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Fire 3 Ultra
5.0, A2DP, LE
U11 Pro
5.0, A2DP, LE
Positioning
Fire 3 Ultra
GPS, GLONASS, GALILEO, BDS
U11 Pro
GPS, GALILEO, GLONASS, BDS
NFC
Fire 3 Ultra
Yes
U11 Pro
No
Radio
Fire 3 Ultra
FM radio
U11 Pro
FM radio
USB
Fire 3 Ultra
USB Type-C 2.0
U11 Pro
USB Type-C 2.0, OTG
Sensors
Fire 3 Ultra
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
U11 Pro
Accelerometer
Type
Fire 3 Ultra
8350 mAh
U11 Pro
8580 mAh
Charging
Fire 3 Ultra
18W wired
U11 Pro
10W wired
Colors
Fire 3 Ultra
Gray, Orange, Green
U11 Pro
Black, Blue, Gray
Price
Fire 3 Ultra
About 160 EUR
U11 Pro
-