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Technology Showdown: Samsung Galaxy S25 Challenges Samsung Galaxy S21
Samsung Galaxy S25
VS
Samsung Galaxy S21
Specifications
Samsung Galaxy S25
VS
Samsung Galaxy S21
Build Quality
| Device Height | 146.9 mm (5.78 inches) | 151.7 mm (5.97 inches) |
| Device Width | 70.5 mm (2.78 inches) | 71.2 mm (2.8 inches) |
| Device Thickness | 7.2 mm (0.28 inches) | 7.9 mm (0.31 inches) |
| Device Weight | 162 g (5.71 oz) | 169 g (5.96 oz) |
| Water Resistance | IP68 | IP68 |
| Enhanced Cooling System | Vapor chamber | |
| Back Panel Material | Glass | Plastic |
| Frame Construction | Metal | Metal |
| Available Color Options | Black, Silver, Gray, Blue, Green, Pink | White, Gray, Pink, Purple |
| Biometric Security | Yes, in-display | Yes, in-display |
| Display Coverage | 91.1% | 85.9% |
System on Chip
| Processing Chip | Qualcomm Snapdragon 8 Elite | Samsung Exynos 2100 |
| Maximum Clock Speed | 4470 MHz | 2900 MHz |
| Processor Core Count | 8 (2 + 6) | 8 (1 + 3 + 4) |
| CPU Architecture | - 6 cores at 3.53 GHz: Oryon (Phoenix M)- 2 cores at 4.32 GHz: Oryon (Phoenix L) | - 4 cores at 2.2 GHz: Cortex-A55- 3 cores at 2.81 GHz: Cortex-A78- 1 core at 2.91 GHz: Cortex-X1 |
| Level 3 Cache | 8 MB | |
| Production Details | TSMC | Samsung |
| Chip Manufacturing Process | 3 nanometers | 5 nanometers |
| AI Processing Unit | Hexagon | Yes |
| Graphics Processor | Adreno 830 | Mali-G78 MP14 |
| Graphics Clock Speed | 1100 MHz | 854 MHz |
| GPU Shader Units | 1536 | 448 |
| Computational Performance | ~3379.2 GFLOPS | ~765.2 GFLOPS |
Random Access Memory
| Memory Capacity | 12 GB | 8 GB |
| Memory Clock Speed | 5333 MHz | 2750 MHz |
| Memory Technology | LPDDR5X | LPDDR5 |
| Memory Channels | 2 | 2 |
Storage Specifications
| Storage Capacity | 128 GB | 128 GB |
| Storage Technology | UFS 4.0 | UFS 3.1 |
| Expandable Storage | No | No |
Operating System
| OS Version | Android 15 (Can be upgraded to Android 16) | Android 11 (Can be upgraded to Android 15) |
| Read-Only Memory | One UI 8.0 | One UI 7.0 |
Battery Endurance Tests
| Web Browsing Battery Life | 09:09 hr | 06:01 hr |
| Video Playback Battery Life | 17:15 hr | 11:06 hr |
| Standby Battery Duration | 108 hr | 95 hr |
Primary Camera
| Camera Sensor Configuration | 50 megapixels | 12 megapixels |
| Zoom Capability | Optical, 3x | 114 |
| Camera Flash | LED | Dual LED |
| 8K Video Support | Up to 30FPS | Up to 24FPS |
| 4K Video Support | Up to 60FPS | Up to 60FPS |
| Full HD Video Support | Up to 60FPS | Up to 60FPS |
| Slow-Motion Video | 240 FPS (1080p) | 960 FPS (720p) |
| Widest Lens Field of View | 120° | 120° |
| Camera Lens Count | 1) Standard: 50 MP 2) Telephoto: 10 MP 3) Ultrawide: 12 MP | 1) Standard: 12 MP 2) Telephoto: 64 MP 3) Ultrawide: 12 MP |
| Camera Special Features | - Bokeh mode - Pro mode - RAW support | - Bokeh mode - Pro mode - RAW support |
Front Camera
| Front Camera Megapixels | 12 megapixels | 10 megapixels |
| Front Camera Resolution | 4000 x 3000 | 3872 x 2592 |
| Front Camera Aperture | f/2.2 | f/2.2 |
| Front Camera Focal Length | 26 mm | 26 mm |
| Front Camera Sensor | Samsung S5K3LU | Sony IMX374 |
| Front Camera Sensor Dimensions | 1/3.2" (≈ 0.31 inch) | 1/3.24" (≈ 0.31 inch) |
| Front Camera Pixel Size | 1.12 micron | 1.22 micron |
| Front Camera Autofocus | Phase autofocus | Phase autofocus (Dual Pixel) |
| Front Camera Stabilization | Digital | Digital |
| Front Camera Video Resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| 3D Depth Sensor | No | No |
Network Specifications
| SIM Card Count | 1 | 2 |
| SIM Card Type | Nano | Nano |
| Dual SIM Functionality | Standby | Standby |
| eSIM Capability | Yes | Yes |
| Hybrid SIM Slot | No | No |
| 2G Network Support | GSM850,GSM900,DCS1800,PCS1900 | GSM 850, 900, 1800, 1900 MHz |
| 3G Network Support | UMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900) | WCDMA Band 1, 2, 4, 5, 8 |
| 4G Network Support | LTE B1(2100),B2(1900),B3(1800),B4(AWS),B5(850),B7(2600),B8(900),B12(700),B13(700),B14(700),B18(800),B19(800),B20(800),B25(1900),B26(850),B28(700),B29(700),B30(2300),B66(AWS-3),B71(600) | LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 |
| 5G Network Compatibility | Yes | Yes |
Audio Specifications
| Sound Output | Stereo | Stereo |
| 3.5mm Audio Jack | No | No |
| FM Radio | No | No |
| Advanced Audio Processing | Yes | Yes |
Additional Features
| Product Category | Flagship | Flagship |
| Announcement Date | January 2025 | January 2021 |
| Initial Pricing | $799 | $800 |
| Sensor List | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
Final Rating
| Display Rating | 88 | 75 |
| Camera Rating | 82* | 59 |
| Gaming Performance Rating | 95 | 45 |
| Battery Rating | 74 | 56 |
| Connectivity Rating | 90 | 86 |
| Overall Review Score | 86* | 61 |
Phone Price Comparison
Samsung Galaxy S25
$799.00 USD
EUR
680.99
INR
73,211.65
NGN
1,134,862.61
JPY
126,625.60
MYR
3,228.20
CNY
5,577.58
ZAR
12,908.88
RUB
60,698.59
GBP
593.34
CHF
632.01
Samsung Galaxy S21
$800.00 USD
EUR
681.84
INR
73,303.28
NGN
1,136,282.96
JPY
126,784.08
MYR
3,232.24
CNY
5,584.56
ZAR
12,925.04
RUB
60,774.56
GBP
594.08
CHF
632.80
