Samsung Galaxy S25 vs Samsung Galaxy S21
Quick Comparison
Samsung Galaxy S25 has better RAM than Samsung Galaxy S21. In terms of display resolution, Samsung Galaxy S25 has better resolution of 3200 x 1800 than Samsung Galaxy S21 which has resolution of 2400 x 1080. Samsung Galaxy S25 has more internal memory than Samsung Galaxy S21
| Name | Samsung Galaxy S25 | Samsung Galaxy S21 |
| RAM | 12 GB | 8 GB |
|---|---|---|
| Display | 6.73 in | 6.2 in |
| Internal Memory | 256 GB | 128 GB |
| Battery | 4800 mAh | 4000 mAh |
| Camera | 108 MP + 12 MP + 12 MP Triple | 64 MP + 12 MP + 12 MP Triple |
| Price | Rs. 74990 | Rs. 69999 |
Related Products
Detailed Comparison
Price And Launch
The launch Date of the first phone is expected to be January 17, 2025 (Expected). The Expected cost of Samsung Galaxy S25 is Rs. 74990. The launch Date of the second phone is January 14, 2021. The cost of Samsung Galaxy S21 is Rs. 69999.
Display comparison
Samsung Galaxy S21 has screen size of 6.2 inches which falls short to Samsung Galaxy S25's 6.73 inch screen. Both the phones have Screen Type. Samsung Galaxy S25 has display density of 546 PPI & Samsung Galaxy S21 has only 421 PPI display density. In terms of screen to body ratio, Samsung Galaxy S25 has better screen to body ratio of ~ 93.07% than Samsung Galaxy S21's ~ 87.2%. Samsung Galaxy S25 has 20.5:9 aspect ratio where as Samsung Galaxy S21 has 20:9 aspect ratio.
Memory comparison
Samsung Galaxy S25's larger 12 GB RAM is better for playing games and all with respect to Samsung Galaxy S21's lower 8 GB RAM. Samsung Galaxy S25 has more Internal Memory (256 GB) than Samsung Galaxy S21 (128 GB).
Camera comparison
Samsung Galaxy S25's 108 MP + 12 MP + 12 MP Triple Rear Camera outclasses Samsung Galaxy S21's 64 MP + 12 MP + 12 MP Triple Rear Camera in terms of resolution. Samsung Galaxy S25 will be better choice if you're looking to click lot of selfies as it has better 12 MP Front Camera in comparison to Samsung Galaxy S21's 10 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 14 and the second one on 10 version.
Related Comparisons
Full Comparison
| Name | Samsung Galaxy S25 | Samsung Galaxy S21 |
| General | ||
| Model | Galaxy S25 | Galaxy S21 5G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 17, 2025 (Expected) | January 14, 2021 |
| Design | ||
| Dimensions | 71.2 x 151.7 x 7.9 mm | |
| Weight | 169 g | |
| Bezel less | Yes | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (1B Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.73 inches, 1800 x 3200 pixels, 144 Hz | 6.2 inches, 1080 x 2400 pixels, 120 Hz |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 546 PPI | ~ 421 PPI |
| Screen to Body Ratio | ~ 93.07% | ~ 87.2% |
| Glass Type | Corning Gorilla Glass Victus Plus | Corning Gorilla Glass Victus |
| Features | Always-on Display, HDR10+, 2000 nits (peak) | Always-on Display, HDR10+ |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 12 GB | 8 GB |
| Storage | 256 GB | 128 GB |
| Storage Type | UFS 4.0 | UFS 3.1 |
| Card Slot | No | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.3, A2DP, LE | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS, Glonass, Beidou, Galileo, QZSS | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP69 | IP68 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.8 (Wide Angle) 12 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| Auto Focus | Yes | |
| Features | Auto-HDR, panorama | Auto-HDR, Panorama |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30 fps UHD, 1080p @ 30 fps FHD, 720p @ 960 fps HD | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 12 MP ƒ/2.2 (Wide Angle) Punch Hole | 10 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v14 | Android v10 |
| Custom UI | OneUI 6.0 | |
| Chipset | Mediatek Dimensity 9400 | Samsung Exynos 2100 |
| CPU | Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 4xArm Cortex-X4@3.25GHz & 4xCortex-A720@2.0GHz | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| GPU | Mali-G78 MP14 | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, DFF, DSF, APE | Yes |
| Video | MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4800 mAh, Li-ion Battery | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 45W Fast Charging | Yes, 25W Fast Charging |
| Wireless Charging | Yes | Yes, 15W |
| Reverse Charging | Yes | Yes, 4.5W |