Screen size
Fire 5 UltraWinner: 6.6"+0.6%
Fire 6 Power6.6"
Quick verdict
Fire 6 Power leads the measured specs 6-5.
Measured wins
Fire 5 Ultra
5
spec wins
Ties
11
equal specs
Fire 6 Power
6
spec wins
Overall winner
Screen size
Technology
Fire 5 Ultra
GSM / HSPA / LTE
Fire 6 Power
GSM / HSPA / LTE
2G bands
Fire 5 Ultra
GSM 850 / 900 / 1800 / 1900
Fire 6 Power
GSM 850 / 900 / 1800 / 1900
3G bands
Fire 5 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Fire 6 Power
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Fire 5 Ultra
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Resolution
equal specsRefresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Fire 6 Power
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Speed
Fire 5 Ultra
HSPA, LTE
Fire 6 Power
HSPA, LTE
Announced
Fire 5 Ultra
2025, December
Fire 6 Power
2024, December
Status
Fire 5 Ultra
Available. Released 2025, December
Fire 6 Power
Available. Released 2024, December
Dimensions
Fire 5 Ultra
176.5 x 82.5 x 18.7 mm (6.95 x 3.25 x 0.74 in)
Fire 6 Power
174.1 x 81.2 x 20.7 mm (6.85 x 3.20 x 0.81 in)
Weight
Fire 5 Ultra
395 g (13.93 oz)
Fire 6 Power
-
SIM
Fire 5 Ultra
Nano-SIM + Nano-SIM
Fire 6 Power
Nano-SIM + Nano-SIM
Other
Fire 5 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 Dedicated flashlight (on the back)
Fire 6 Power
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant Dedicated flashlight 120 lm
Type
Fire 5 Ultra
IPS LCD, 90Hz, 400 nits
Fire 6 Power
IPS LCD, 90Hz
Size
Fire 5 Ultra
6.6 inches, 104.6 cm2 (~71.9% screen-to-body ratio)
Fire 6 Power
6.56 inches, 103.4 cm2 (~73.1% screen-to-body ratio)
Resolution
Fire 5 Ultra
720 x 1612 pixels, 20:9 ratio (~267 ppi density)
Fire 6 Power
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
Protection
Fire 5 Ultra
Mohs level 6
Fire 6 Power
Mohs level 6
OS
Fire 5 Ultra
Android 15
Fire 6 Power
Android 14
Chipset
Fire 5 Ultra
Mediatek Helio G81 (12 nm)
Fire 6 Power
Unisoc T606 (12 nm)
CPU
Fire 5 Ultra
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Fire 6 Power
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Fire 5 Ultra
Mali-G52 MC2
Fire 6 Power
Mali-G57 MP1
Card slot
Fire 5 Ultra
microSDXC (dedicated slot)
Fire 6 Power
microSDXC (dedicated slot)
Internal
Fire 5 Ultra
256GB 8GB RAM
Fire 6 Power
256GB 8GB RAM
Other
Fire 5 Ultra
-
Fire 6 Power
UFS
Single
Fire 5 Ultra
48 MP, f/1.8, (wide), AF
Fire 6 Power
-
Features
Fire 5 Ultra
Dual-LED flash, HDR, panorama
Fire 6 Power
Dual-LED flash, HDR, panorama
Video
Fire 5 Ultra
1440p@30fps
Fire 6 Power
1080p
Triple
Fire 5 Ultra
-
Fire 6 Power
50 MP, f/1.8, (wide), PDAF 2 MP (macro)
Single
Fire 5 Ultra
8 MP, f/2.0, (wide)
Fire 6 Power
8 MP, f/2.2, (wide)
Video
Fire 5 Ultra
1080p@30fps
Fire 6 Power
720p
Loudspeaker
Fire 5 Ultra
Yes
Fire 6 Power
Yes, with stereo speakers
3.5mm jack
Fire 5 Ultra
No
Fire 6 Power
No
WLAN
Fire 5 Ultra
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Fire 6 Power
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Fire 5 Ultra
5.0, A2DP, LE
Fire 6 Power
5.0, A2DP, LE
Positioning
Fire 5 Ultra
GPS, GLONASS, GALILEO, BDS
Fire 6 Power
GPS, GLONASS, BDS, GALILEO
NFC
Fire 5 Ultra
Yes
Fire 6 Power
Yes
Radio
Fire 5 Ultra
FM radio
Fire 6 Power
FM radio
USB
Fire 5 Ultra
USB Type-C
Fire 6 Power
USB Type-C 2.0, OTG
Sensors
Fire 5 Ultra
Fingerprint (side-mounted), accelerometer, proximity, compass
Fire 6 Power
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
Fire 5 Ultra
13000 mAh
Fire 6 Power
15500 mAh
Charging
Fire 5 Ultra
18W wired
Fire 6 Power
33W wired 18W reverse wired
Colors
Fire 5 Ultra
Gray, Orange, Green
Fire 6 Power
Black, Green
Price
Fire 5 Ultra
About 250 EUR
Fire 6 Power
About 190 EUR