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Samsung Galaxy S25+

Device A

Galaxy S25+

Samsung · Phones

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Samsung Galaxy S21 Ultra

Device B

Galaxy S21 Ultra

Samsung · Phones

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Complete comparison

Full specifications

Every available group and stored value, aligned by field.

LAUNCH DATE3 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
Announced2025, February 03January 29, 2021
Released2025-02-072021-01-29
StatusAvailableAvailable
NETWORK6 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
2G BandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G BandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, CDMA2000 1xEV-DOHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DO
4G LTE1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G998B
5G1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International; 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1; 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
SpeedLTE, 5GLTE, 5G
Technology5G/4G/LTE/GSM5G/4G/LTE/GSM
BODY5 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
BuildGlass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions158.4 x 75.8 x 7.3 mm (6.24 x 2.98 x 0.29 in)165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
IP RatingIP68 dust/water resistant (up to 1.5m for 30 min)IP68 dust/water resistant (up to 1.5m for 30 min)
SIMNano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT Nano-SIM + eSIM + eSIM (max 2 at a time) - USA Nano-SIM + Nano-SIM - CNNano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight190 g (6.70 oz)227 g (Sub6), 229 g (mmWave) (8.01 oz)
DISPLAY7 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
Brightness2600 nits (peak)1500 nits (peak)
ProtectionCorning Gorilla Glass Victus 2, Mohs level 5Corning Gorilla Glass Victus
Refresh Rate120Hz120Hz
Resolution1440 x 3120 pixels, 19.5:9 ratio (~513 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Screen-to-body~91.8%~89.8%
Size6.7 inches, 110.2 cm2 (~91.8% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeDynamic LTPO AMOLED 2X, 120Hz, 480Hz PWM, HDR10+, 2600 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
PLATFORM4 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
CPUOcta-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
ChipsetQualcomm SM8750-AC Snapdragon 8 Elite (3 nm)Exynos 2100 (5 nm) - International / Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 830 (1200 MHz)Mali-G78 MP14 - International Adreno 660 - USA/China
OSAndroid 15, up to 7 major Android upgrades, One UI 7Android 11, up to 4 major Android upgrades, One UI 6.1
MEMORY4 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
Card slotNoNo
Internal256GB, 512GB128GB, 256GB, 512GB
RAM12GB RAM8GB RAM, 12GB RAM,16GB RAM,
Storage/RAM variants256GB, 512GB; 12GB RAM128GB, 256GB, 512GB; 8GB RAM, 12GB RAM,16GB RAM,
MAIN CAMERA3 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
FeaturesBest Face, LED flash, auto-HDR, panoramaLaser AF, LED flash, auto-HDR, panorama
MAIN CAMERA50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2
Video8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
SELFIE CAMERA3 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
FeaturesHDR, HDR10+HDR
Selfie camera12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video4K@30/60fps, 1080p@30fps4K@30/60fps, 1080p@30fps
SOUND2 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
3.5mm jackNoNo
LoudspeakerYes, with stereo speakersYes, with stereo speakers
COMMUNICATION6 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
Bluetooth5.4, A2DP, LE5.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEO, QZSSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.2, DisplayPort 1.2, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
FEATURES1 field
SpecificationGalaxy S25+Galaxy S21 Ultra
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
BATTERY3 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
Capacity4900 mAh5000 mAh
Charging Type45W wired, 65% in 30 min; 15W wireless; 4.5W reverse wireless25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLithium-ion, non-removableLi-Ion 5000 mAh
ADDITIONAL INFORMATION4 fields
SpecificationGalaxy S25+Galaxy S21 Ultra
ColorsIcy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue BlackPhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Launch Price (USD)$850.00 (reference only — see Price in Nigeria above for the actual retail price)$399.98 (reference only — see Price in Nigeria above for the actual retail price)
ModelsSM-S936B, SM-S936B/DS, SM-S936U, SM-S936U1, SM-S936W, SM-S936N, SM-S9360, SM-S936E, SM-S936E/DSSM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price in Nigeria₦790,000 (Seller price)₦770,000 (Seller price)
SECURITY1 field
SpecificationGalaxy S25+Galaxy S21 Ultra
SecurityBiometric security: Fingerprint (under display, ultrasonic).Biometric security: Fingerprint (under display, ultrasonic).

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