Samsung Galaxy S21 Ultra vs DOOGEE Fire 6 Max Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.1
Samsung Galaxy S21 Ultra
Samsung Galaxy S21 Ultra DOOGEE Fire 6 Max
Released · Jan 29, 2021
Released · February 2025
6.8-inch · 3200 x 1440 px
6.7-inch · 2400 x 1080 px
108 MP Main · 40 MP Selfie
50 MP Main · 16 MP Selfie
12GB · 128GB
20GB · 256GB
5000 mAh
20800 mAh
Check prices Check prices

Display

Size
6.8-inch 6.7-inch
Resolution
3200 x 1440 px, 20:9 ratio, 516 PPI 2400 x 1080 px, 20:9 ratio, 392 PPI
Technology
Dynamic AMOLED IPS LCD
Refresh rate
120Hz (adaptable) 120Hz
Screen-to-body
89.33 % 73.55 %
Peak brightness
1500 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 888 SM8350 (5 nm) MediaTek Dimensity 7050 (4 nm)
Processor
Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit Octa-core, 2x 2.6GHz Cortex-A78 + 6x 2.0GHz Cortex-A55, 64-bit
GPU
Adreno 660 Mali-G68 MC4
RAM
12GB (LPDDR5) 20GB
Internal storage
128GB (UFS 3.1), not expandable 256GB
Storage expansion
microSDXC up to 2048 GB
OS
Android (14, 13, 12, 11), One UI Android (14)
Device type
Smartphone Smartphone

Battery

Capacity
5000 mAh 20800 mAh
Type
Li - Polymer, Not user replaceable Li - Ion, Not user replaceable
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Max charge speed
Wired: 25.0W
Wireless: 15.0W
Wired: 33.0W
PhoneArena Battery Tests
Battery Life Estimate
6h 15min
Browsing
14h 43min
Video
8h 52min
Gaming
8h 40min
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested

Camera

Rear
Quad camera Dual camera
Main camera
108 MP (OIS, Laser and PDAF)
Specifications:
Aperture size: F1.8
Focal length: 24 mm
Sensor size: 1/1.33"
Pixel size: 0.8 μm
50 MP
Specifications:
Aperture size: F1.8
Second camera
10 MP (Telephoto, Periscope, OIS, PDAF)
Specifications:
Optical zoom: 10.0x
Aperture size: F4.9
Focal Length: 240 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
8 MP (Ultra-wide)
Third camera
10 MP (Telephoto, OIS, PDAF)
Specifications:
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
20 MP (Night vision sensor)
Fourth camera
12 MP (Ultra-wide, PDAF)
Specifications:
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
FLIR thermal camera
Flash
LED LED
Video recording
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
Features:
OIS, HDR, Hyperlapse, Video light, EIS
Yes
Front
40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps) 16 MP

Design

Dimensions
6.50 x 2.98 x 0.35 inches
(165.1 x 75.6 x 8.9 mm)
thickness with camera 0.37 inches (9.4 mm)
7.07 x 3.25 x 0.89 inches
(179.5 x 82.5 x 22.5 mm)
Weight
8.04 oz(229.0 g)
Materials
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Left: Other; Right: Volume control, Lock/Unlock key
Colors
Phantom black, Silver Silver, Green

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave Bands n1, n3, n7, n8, n28, n38, n41, n77, n78, n79
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s)
Dual SIM
Yes
SIM type
Nano SIM

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Loudspeaker
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS FM, Stereo, RDS
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation

Connectivity & Features

Bluetooth
5.1 5.2
Wi-Fi
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac
Wi-Fi Direct, Hotspot
USB
Type-C (reversible), USB 3.2, Features: Charging, Headphones port, OTG, Video out Type-C (reversible), Features: Charging
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer Accelerometer, Gyroscope, Compass
Other
NFC, ANT+ NFC

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020
FCC ID value: A3LSMG998U
Measured SAR
Head: 0.77 W/kg
Body: 1.02 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.16 W/kg
Phablet: 3.15 W/kg

Buyers information

MSRP
$ 1200 / € 1399
In The Box
C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 14, 2021

Alternative variants

with 256GB storage
Internal storage 256GB
Colors Phantom black
MSRP $ 1250
with 512GB storage
RAM 16GB
Internal storage 512GB
Colors Phantom black
MSRP $ 1380
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core, 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55, 64-bit
GPU Mali G78 MP14
Weight 8.01 oz(227.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 22, 2020
FCC ID value: A3LSMG998B
Measured SAR Head: 0.16 W/kg
Body: 0.72 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.34 W/kg
Phablet: 3.86 W/kg
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