Screen size
equal specsGalaxy S21+ 5G6.7"
Galaxy S25+6.7"
Quick verdict
Galaxy S25+ leads the measured specs 14-0.
Measured wins
Galaxy S21+ 5G
0
spec wins
Ties
9
equal specs
Galaxy S25+
14
spec wins
Overall winner
Screen size
equal specsTechnology
Galaxy S21+ 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
Galaxy S25+
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy S21+ 5G
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
Galaxy S25+
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
3G bands
Galaxy S21+ 5G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Galaxy S25+
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
Galaxy S21+ 5G
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specs1, 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-G996U1, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G996B
Galaxy S25+
1, 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 unlocked
5G bands
Galaxy S21+ 5G
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G996U1, 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G996B
Galaxy S25+
1, 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 unlocked
Speed
Galaxy S21+ 5G
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
Galaxy S25+
HSPA, LTE (up to 7CA), 5G
Announced
Galaxy S21+ 5G
2021, January 14
Galaxy S25+
2025, January 22
Status
Galaxy S21+ 5G
Available. Released 2021, January 29
Galaxy S25+
Available. Released 2025, February 03
Dimensions
Galaxy S21+ 5G
161.5 x 75.6 x 7.8 mm (6.36 x 2.98 x 0.31 in)
Galaxy S25+
158.4 x 75.8 x 7.3 mm (6.24 x 2.98 x 0.29 in)
Weight
Galaxy S21+ 5G
200 g (Sub6), 202 g (mmWave) (7.05 oz)
Galaxy S25+
190 g (6.70 oz)
Build
Galaxy S21+ 5G
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Galaxy S25+
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
SIM
Galaxy S21+ 5G
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Galaxy S25+
· Nano-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 - CN
Other
Galaxy S21+ 5G
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Galaxy S25+
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame
Type
Galaxy S21+ 5G
Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Galaxy S25+
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Size
Galaxy S21+ 5G
6.7 inches, 107.8 cm2 (~88.3% screen-to-body ratio)
Galaxy S25+
6.7 inches, 110.2 cm2 (~91.8% screen-to-body ratio)
Resolution
Galaxy S21+ 5G
1080 x 2400 pixels, 20:9 ratio (~394 ppi density)
Galaxy S25+
1440 x 3120 pixels, 19.5:9 ratio (~513 ppi density)
Protection
Galaxy S21+ 5G
Corning Gorilla Glass Victus
Galaxy S25+
Corning Gorilla Glass Victus 2, Mohs level 5
OS
Galaxy S21+ 5G
Android 11, up to 4 major Android upgrades, One UI 6.1
Galaxy S25+
Android 15, up to 7 major Android upgrades, One UI 8
Chipset
Galaxy S21+ 5G
Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
Galaxy S25+
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
CPU
Galaxy S21+ 5G
Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
Galaxy S25+
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Galaxy S21+ 5G
Mali-G78 MP14 - InternationalAdreno 660 - USA/China
Galaxy S25+
Adreno 830 (1200 MHz)
Card slot
Galaxy S21+ 5G
No
Galaxy S25+
No
Internal
Galaxy S21+ 5G
128GB 8GB RAM, 256GB 8GB RAM
Galaxy S25+
256GB 12GB RAM, 512GB 12GB RAM
Other
Galaxy S21+ 5G
UFS 3.1
Galaxy S25+
UFS 4.0
Triple
Galaxy S21+ 5G
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Galaxy S25+
50 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 video
Features
Galaxy S21+ 5G
LED flash, auto-HDR, panorama
Galaxy S25+
Best Face, LED flash, auto-HDR, panorama
Video
Galaxy S21+ 5G
8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Galaxy S25+
8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Single
Galaxy S21+ 5G
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Galaxy S25+
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Features
Galaxy S21+ 5G
HDR
Galaxy S25+
HDR, HDR10+
Video
Galaxy S21+ 5G
4K@30/60fps, 1080p@30fps
Galaxy S25+
4K@30/60fps, 1080p@30fps
Loudspeaker
Galaxy S21+ 5G
Yes, with stereo speakers
Galaxy S25+
Yes, with stereo speakers
3.5mm jack
Galaxy S21+ 5G
No
Galaxy S25+
No
Other
Galaxy S21+ 5G
High-bitrate audio support
Galaxy S25+
High-bitrate audio support
WLAN
Galaxy S21+ 5G
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Galaxy S25+
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy S21+ 5G
5.0, A2DP, LE
Galaxy S25+
5.4, A2DP, LE
Positioning
Galaxy S21+ 5G
GPS, GLONASS, BDS, GALILEO
Galaxy S25+
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Galaxy S21+ 5G
Yes
Galaxy S25+
Yes
Radio
Galaxy S21+ 5G
FM radio (Snapdragon model only; market/operator dependent)
Galaxy S25+
No
USB
Galaxy S21+ 5G
USB Type-C 3.2, OTG
Galaxy S25+
USB Type-C 3.2, DisplayPort 1.2, OTG
Sensors
Galaxy S21+ 5G
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Galaxy S25+
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Other
Galaxy S21+ 5G
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Galaxy S25+
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Type
Galaxy S21+ 5G
Li-Ion 4800 mAh
Galaxy S25+
Li-Ion 4900 mAh
Charging
Galaxy S21+ 5G
25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Galaxy S25+
45W wired, PD3.0, 65% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Colors
Galaxy S21+ 5G
Phantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red
Galaxy S25+
Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black
Models
Galaxy S21+ 5G
SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N, SM-G9960
Galaxy S25+
SM-S936B, SM-S936B/DS, SM-S936U, SM-S936U1, SM-S936W, SM-S936N, SM-S9360, SM-S936E, SM-S936E/DS
SAR
Galaxy S21+ 5G
0.65 W/kg (head) 0.95 W/kg (body)
Galaxy S25+
1.16 W/kg (head) 0.81 W/kg (body)
SAR EU
Galaxy S21+ 5G
0.54 W/kg (head) 1.33 W/kg (body)
Galaxy S25+
1.26 W/kg (head) 1.26 W/kg (body)
Price
Galaxy S21+ 5G
$ 167.66 / £ 249.00 / € 189.00
Galaxy S25+
$ 899.99 / C$ 997.99 / £ 749.99 / € 758.43 / ₹ 99,999