Samsung Galaxy S21 vs Samsung Galaxy S25 FE

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Galaxy S21 compared with Galaxy S25 FE

	SamsungGalaxy S21	SamsungGalaxy S25 FE
Overview
Released
Released	January 2021	September 2025
Display
Screen size
Screen size	6.2″	6.7″
Resolution
Resolution	2400 × 1080 (better)	2340 × 1080
Sharpness
Sharpness	424 pixels per inch (better)	385 pixels per inch
Panel
Panel	OLED	OLED
Refresh rate
Refresh rate	120 Hz	120 Hz
Display type
Display type	Flat FHD+ Dynamic AMOLED 2X Infinity-O Display (2,400 × 1,080), HDR10+ certified; adaptive 120 Hz (48–120 Hz); 6.2 inches as a full rectangle, 6.1 inches with rounded corners	Dynamic AMOLED 2X, FHD+, 16M colours; 120 Hz refresh rate (60/120 Hz)
Pixel density
Pixel density	421 ppi	–
Brightness detail
Brightness detail	1,300 nits peak	–
Screen protection
Screen protection	Corning Gorilla Glass Victus front	Corning Gorilla Glass Victus+
Display features
Display features	Eye Comfort Shield	Vision Booster
Performance
Chip
Chip	Exynos 2100	Exynos 2400
Memory
Memory	8 GB	8 GB
Storage
Storage	128 GB, 256 GB	128 GB, 256 GB, 512 GB (better)
CPU
CPU	5 nm, 64-bit octa-core, 2.9 GHz + 2.8 GHz + 2.2 GHz; 8 GB of LPDDR5 RAM	Deca-core (3.2 GHz, 2.9 GHz, 2.6 GHz, 1.95 GHz)
GPU
GPU	–	Hardware-based ray tracing
Cooling
Cooling	–	Vapour chamber 13% larger than on the Galaxy S24 FE
Storage type
Storage type	128 or 256 GB; no microSD slot	–
Cameras
Main camera
Main camera	12 MP	50 MP (better)
Ultra wide camera
Ultra wide camera	12 MP	12 MP
Telephoto camera
Telephoto camera	64 MP	8 MP
Optical zoom
Optical zoom	1.1×	3× (better)
Front camera
Front camera	10 MP	12 MP (better)
Main camera
Main camera	12 MP wide-angle, Dual Pixel AF, OIS, F1.8, 1.8 µm, 79°	50 MP wide, F1.8, 84° field of view, OIS
Ultra wide camera
Ultra wide camera	12 MP fixed focus, F2.2, 1.4 µm, 120°	12 MP, F2.2, 123° field of view
Telephoto camera
Telephoto camera	64 MP, phase detection AF, OIS, F2.0, 0.8 µm, 76°; 1.1x optical zoom (MobileSyrup)	8 MP, F2.4, 32° field of view, OIS, 3x optical zoom
Front camera
Front camera	10 MP Dual Pixel AF, F2.2, 1.22 µm, 80°	12 MP, F2.2, 80° field of view
Zoom
Zoom	3x Hybrid Optic Zoom; 30x Space Zoom	3x optical zoom; 2x optical-quality zoom (Adaptive Pixel sensor); digital zoom up to 30x
Video recording
Video recording	8K at 24 fps; 4K at 60 fps	Up to 8K (7680 × 4320) at 30 fps; slow motion at 240 fps (FHD) and 120 fps (FHD and UHD)
Camera features
Camera features	–	ProVisual Engine; Nightography with low noise mode; Super HDR video
Battery and charging
Battery
Battery	4,000 mAh	4,900 mAh (better)
Video playback (maker's claim)
Video playback (maker's claim)	Up to 20 hours	Up to 28 hours
Wired charging
Wired charging	Up to 25 W	Up to 45 W (better)
Wireless charging
Wireless charging	Up to 15 W	Up to 15 W
Battery life detail
Battery life detail	4,000 mAh typical, 3,880 mAh rated; wireless video playback up to 20 hours; internet use up to 14 hours (LTE) or 15 hours (Wi-Fi); talk time up to 33 hours (4G)	Rated (minimum) capacity 4,755 mAh; at least 2,000 charge cycles; EU energy class B
Wired charging
Wired charging	USB PD 3.0 (PPS) fast charging, AFC and QC2.0 compatible; up to 25 W	Up to 65% in around 30 minutes with a 45 W adapter (sold separately); QC2.0 and AFC PD compatible
Wireless charging
Wireless charging	Fast Wireless Charging 2.0 (WPC); up to 15 W	Fast Wireless Charging up to 15 W (WPC); Qi2 with a compatible case
Charges other devices
Charges other devices	Wireless PowerShare	Wireless PowerShare
Design
Type
Type	Standard	Standard
Weight
Weight	169 g (better)	190 g
Thickness
Thickness	7.9 mm	7.4 mm (better)
Height × width
Height × width	151.7 × 71.2 mm	161.3 × 76.6 mm
Water and dust resistance
Water and dust resistance	IP68	IP68
Materials
Materials	Metal frame with Contour Cut camera housing; Deluxe Frosted Haze matte finish	Enhanced Armor Aluminum frame; Corning Gorilla Glass Victus+ back
Colours
Colours	Phantom Violet, Phantom Grey, Phantom Pink, Phantom White	Icyblue, Jetblack, Navy, White
Water resistance detail
Water resistance detail	IP68, up to 1.5 m of fresh water for up to 30 minutes; not advised for beach or pool use	IP68, tested for submersion in up to 1.5 m of fresh water for up to 30 minutes; not advised for beach or pool use
Biometrics
Biometrics	Ultrasonic in-screen fingerprint sensor, face recognition	Fingerprint sensor
Sensors
Sensors	Ultrasonic fingerprint, accelerometer, barometer, gyro, geomagnetic, Hall, proximity, ambient light	Accelerometer, barometer, fingerprint sensor, gyro sensor, geomagnetic sensor, Hall sensor, light sensor, proximity sensor
Speakers
Speakers	Stereo speakers; UHQ 32-bit and DSD64/128 playback	Stereo speakers
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	Android 11	One UI 8 (Android 16)
Software updates
Software updates	–	Seven generations of OS upgrades and seven years of security updates; security updates until 30 September 2032 (UK)
AI features
AI features	–	Galaxy AI, including Now Bar, Now Brief, Generative Edit, Instant Slow-mo, Audio Eraser and Auto Trim; Gemini Live; Circle to Search with Google
Connectivity
Satellite messaging
Satellite messaging	–	Yes
Mobile network
Mobile network	5G (NSA, SA), Sub6	5G Sub6 (FDD, TDD, SDL); 4G LTE (FDD, TDD); 3G WCDMA; 2G GSM
SIM
SIM	Nano-SIM and eSIM	Two nano-SIMs, nano-SIM and eSIM, or dual eSIM
Wi-Fi
Wi-Fi	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 and 5 GHz, HE80, MIMO, 1024-QAM	Wi-Fi 6E (802.11a/b/g/n/ac/ax), 2.4, 5 and 6 GHz, HE160, MIMO, 1024-QAM
Bluetooth
Bluetooth	Bluetooth 5.0	Bluetooth 5.4
NFC
NFC	Yes	Yes
Satellite features
Satellite features	–	Works with O2 Satellite in the UK (texts, supported apps, maps and location sharing where O2 has no signal; not emergency calls)
USB
USB	USB Type-C, USB 3.2 Gen 1; DisplayPort output up to 4K at 60 fps	USB Type-C, USB 3.2 Gen 1
Positioning
Positioning	GPS, Galileo, Glonass, BeiDou	GPS, Glonass, Beidou, Galileo, NavIC, QZSS