Samsung Galaxy S21 FE vs Samsung Galaxy S25 Ultra 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.

8.3
Samsung Galaxy S21 FE
8.0
Samsung Galaxy S25 Ultra
Samsung Galaxy S21 FE Samsung Galaxy S25 Ultra
Released · Jan 11, 2022
Released · Feb 07, 2025
6.4-inch · 2340x1080px
6.9-inch · 3120x1440px
Triple camera
Quad camera
6GB · 128GB
12GB · 256GB
4500 mAh
5000 mAh
Check prices Check prices

Availability

Officially announced
Jan 04, 2022 Jan 22, 2025
Prices (MSRP)
$700 | €749 12GB/256GB - $1299 | €1449
12GB/512GB - $1420
12GB/1TB - $1660

Design

Dimensions
6.13 x 2.93 x 0.31 inches (~0.36 inches with camera bump)
155.7 x 74.5 x 7.9 mm (~9.2 mm with camera bump)
6.41 x 3.06 x 0.32 inches (~0.36 inches with camera bump)
162.8 x 77.6 x 8.2 mm (~9.1 mm with camera bump)
Weight
6.00 oz / 170.0 g 7.69 oz / 218.0 g
Materials
Back: Plastic
Frame: Metal
Back: Glass (Corning Gorilla Glass Victus 2)
Frame: Titanium
Resistance
Water, Dust; IP68 Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint Ultrasonic in-screen fingerprint
Features
Stylus
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
White, Graphite, Lavender, Olive Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Display

Size
6.4-inch, 86.77% screen-to-body 6.9-inch, 90.30% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1200 nits Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI 3120x1440px, 19.5:9 ratio, 498 PPI
Protection
Corning Gorilla Glass Victus Corning Gorilla Glass Armor 2
PhoneArena Display Test
Bright Max (20% APL)
Untested 2373 (Excellent)
Bright Min
1.6 (Good) 0.8 (Excellent)

Hardware

System chip
Snapdragon 888 SM8350 (5 nm) Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Octa-core
1x2.84GHz Cortex-X1
3x2.42G​Hz Cortex-A78
4x1.80​GHz Cortex-A55
Octa-core
2x4.47GHz Oryon V2 PhoenixL
6x3.53GH​z Oryon V2 PhoenixM
GPU
Adreno 660 Adreno 830
Memory
6GB (LPDDR5)/128GB (UFS 3.1)
8GB/256GB
12GB (LPDDR5X)/256GB (UFS 4.0)
12GB/512GB
12GB/1024GB
Storage expansion
not expandable not expandable
OS
Android (14, 13, 12) Android (15), up to 7 OS updates
PhoneArena Performance Test
GeekBench 6 Single
1278 3137
GeekBench 6 Multi
3505 9769
3D Mark High
1445 6208
3D Mark Low
907 2981

Battery

Type
4500 mAh, Li - Ion 5000 mAh, Li - Ion
Charging
Fast charging
Qi wireless charging, Reverse wireless charging
Fast charging
Qi wireless charging, Reverse wireless charging
Charge speed
Wired: 25.0W
Wireless: 15.0W
Wired: 45.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
9h 39min
Video
7h 19min
Gaming
Untested
Battery Life Estimate
8h 0min
Browsing
20h 49min
Video
8h 54min
Gaming
14h 21min

Camera

Rear
Triple camera Quad camera
Main camera
12 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 1.8 μm
200 MP (OIS, Laser and PDAF)
Sensor name: Samsung ISOCELL HP2
Aperture size: F1.7
Focal length: 24 mm
Sensor size: 1/1.3"
Pixel size: 0.6 μm
Second camera
12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/3"
50 MP (Ultra-wide, PDAF)
Sensor name: Samsung JN3
Aperture size: F1.9
Pixel size: 0.7 μm
Third camera
8 MP (Telephoto, OIS)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 13 mm
Sensor size: 1/4.5"
Pixel size: 1.0 μm
10 MP (Telephoto, OIS, PDAF)
Sensor name: Sony IMX754
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 67 mm
Sensor size: 1/3.52"
Pixel size: 1.12 μm
Fourth camera
50 MP (Telephoto, Periscope, OIS, PDAF)
Sensor name: Sony IMX854
Optical zoom: 5.0x
Aperture size: F3.4
Focal Length: 111 mm
Sensor size: 1/2.52"
Pixel size: 0.7 μm
Flash
LED LED
Video recording
4K UHD (60 fps)
HDR, Continuous autofocus, Picture-taking during video recording, 10-bit HDR
8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps)
HDR, Continuous autofocus, Picture-taking during video recording
Front
32 MP (HDR, Autofocus)
Video capture: 4K UHD (60 fps)
12 MP (PDAF, HDR)
Video capture: 4K UHD (60 fps)
PhoneArena Camera Tests
N/A
Overall
N/A
Photo
N/A
Video
158
Overall
165
Photo
150
Video

Connectivity & Features

Bluetooth
5.0 5.4
WLAN
a,b,g,n,ac,Wi-Fi 6
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2 Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC NFC, Ultra Wideband (UWB)

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
aptX, aptX-HD
Screen mirroring
Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
n1, n3, n5, n8, n20, n28, n38, n40, n41, n66, n78, 5G Ready n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n257, n258, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 66 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
38, 40, 41 38, 39, 40, 41, 48
3G Bands
1, 2, 4, 5, 8 1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM Nano SIM, eSIM

Regulatory Approval

FCC approval
Date approved: Jun 29, 2021
FCC ID value: A3LSMG990U
Date approved: Nov 26, 2024
FCC ID value: A3LSMS938U
Measured SAR
Head: 0.77 W/kg
Body: 0.90 W/kg
Simultaneous Transmission: 1.48 W/kg
Wireless Router: 1.09 W/kg
Head: 1.26 W/kg
Body: 0.64 W/kg
Simultaneous Transmission: 1.19 W/kg

Alternative variants

With 8GB RAM and 256GB internal storage
Memory 8GB/256GB
Prices (MSRP) $770
With 512GB internal storage
Memory 512GB
Prices (MSRP) $1420
With 1TB internal storage
Memory 1024GB
Prices (MSRP) $1660
International
5G Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
4G (FDD) Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands 38, 39, 40, 41
SIM type Dual Nano SIM + eSIM
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