Screen size
Fire 5 Ultra6.6"
R20Winner: 10.4"+37%
Quick verdict
R20 leads the measured specs 12-5.
Measured wins
Fire 5 Ultra
5
spec wins
Ties
5
equal specs
R20
12
spec wins
Overall winner
Screen size
Technology
Fire 5 Ultra
GSM / HSPA / LTE
R20
GSM / HSPA / LTE
2G bands
Fire 5 Ultra
GSM 850 / 900 / 1800 / 1900
R20
GSM 850 / 900 / 1800 / 1900
3G bands
Fire 5 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
R20
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
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
R20
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
Speed
Fire 5 Ultra
HSPA, LTE
R20
HSPA, LTE
Announced
Fire 5 Ultra
2025, December
R20
2024, January 26
Status
Fire 5 Ultra
Available. Released 2025, December
R20
Available. Released 2024, February
Dimensions
Fire 5 Ultra
176.5 x 82.5 x 18.7 mm (6.95 x 3.25 x 0.74 in)
R20
258.9 x 169.6 x 18 mm (10.19 x 6.68 x 0.71 in)
Weight
Fire 5 Ultra
395 g (13.93 oz)
R20
931 g (2.05 lb)
SIM
Fire 5 Ultra
Nano-SIM + Nano-SIM
R20
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)
R20
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant Stylus support
Type
Fire 5 Ultra
IPS LCD, 90Hz, 400 nits
R20
IPS LCD
Size
Fire 5 Ultra
6.6 inches, 104.6 cm2 (~71.9% screen-to-body ratio)
R20
10.4 inches, 307.9 cm2 (~70.1% screen-to-body ratio)
Resolution
Fire 5 Ultra
720 x 1612 pixels, 20:9 ratio (~267 ppi density)
R20
1200 x 2000 pixels, 5:3 ratio (~224 ppi density)
Protection
Fire 5 Ultra
Mohs level 6
R20
Corning Gorilla Glass 5
OS
Fire 5 Ultra
Android 15
R20
Android 13
Chipset
Fire 5 Ultra
Mediatek Helio G81 (12 nm)
R20
Mediatek Helio G99 (6 nm)
CPU
Fire 5 Ultra
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
R20
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Fire 5 Ultra
Mali-G52 MC2
R20
Mali-G57 MC2
Card slot
Fire 5 Ultra
microSDXC (dedicated slot)
R20
microSDXC (uses shared SIM slot)
Internal
Fire 5 Ultra
256GB 8GB RAM
R20
256GB 8GB RAM
Other
Fire 5 Ultra
-
R20
uMCP
Single
Fire 5 Ultra
48 MP, f/1.8, (wide), AF
R20
50 MP, f/1.8, (wide)
Features
Fire 5 Ultra
Dual-LED flash, HDR, panorama
R20
LED flash
Video
Fire 5 Ultra
1440p@30fps
R20
1440p@30fps, 1080p@30fps
Single
Fire 5 Ultra
8 MP, f/2.0, (wide)
R20
16 MP, f/2.0, (wide)
Video
Fire 5 Ultra
1080p@30fps
R20
1080p@30fps
Loudspeaker
Fire 5 Ultra
Yes
R20
Yes, with stereo speakers
3.5mm jack
Fire 5 Ultra
No
R20
Yes
WLAN
Fire 5 Ultra
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R20
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Fire 5 Ultra
5.0, A2DP, LE
R20
5.2, A2DP, LE
Positioning
Fire 5 Ultra
GPS, GLONASS, GALILEO, BDS
R20
GPS, GLONASS, GALILEO, BDS
NFC
Fire 5 Ultra
Yes
R20
No
Radio
Fire 5 Ultra
FM radio
R20
FM radio
USB
Fire 5 Ultra
USB Type-C
R20
USB Type-C 2.0, OTG
Sensors
Fire 5 Ultra
Fingerprint (side-mounted), accelerometer, proximity, compass
R20
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
Fire 5 Ultra
13000 mAh
R20
21600 mAh
Charging
Fire 5 Ultra
18W wired
R20
33W wired Reverse wired
Colors
Fire 5 Ultra
Gray, Orange, Green
R20
Black, Green, Orange
Price
Fire 5 Ultra
About 250 EUR
R20
About 250 EUR