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| Spec | Samsung Galaxy S21 Samsung | Samsung Galaxy S24 Ultra Samsung |
|---|---|---|
| Always-On Display | Yes | — |
| Audio Jack | No | No |
| Battery | 4000mAh | 5000mAh |
| Battery Type | — | Li-Ion |
| Bluetooth | 5.0 | 5.3 |
| Brightness | 1300 nits | — |
| Build | Glass Front, Plastic Back | — |
| Charging | 25W Wired | 45W Fast Charging |
| Chipset | Exynos 2100 / Snapdragon 888 | Snapdragon 8 Gen 3 for Galaxy |
| Colors | Phantom Gray, Phantom White, Phantom Violet, Phantom Pink | Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow |
| CPU | Octa-core | Octa-core |
| Dimensions | 151.7 x 71.2 x 7.9 mm | 162.3 x 79 x 8.6 mm |
| Display | 6.2-inch Dynamic AMOLED 2X | 6.8-inch Dynamic AMOLED 2X |
| Display Type | AMOLED | LTPO AMOLED |
| Face Unlock | Yes | Yes |
| Fingerprint | Ultrasonic Under Display | Ultrasonic Under Display |
| Frame | Aluminum | Titanium |
| Front Camera | 10MP | 12MP |
| Galaxy AI | — | Yes |
| GPS | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO, BDS |
| GPU | Mali-G78 / Adreno 660 | Adreno 750 |
| HDR | HDR10+ | HDR10+ |
| Main Camera | 12MP OIS | 200MP OIS |
| Memory Card | No | No |
| Network | 2G,3G,4G,5G | 2G,3G,4G,5G |
| NFC | Yes | Yes |
| Night Mode | Yes | — |
| OS | Android 11 | Android 14 |
| Peak Brightness | — | 2600 nits |
| Periscope Camera | — | 50MP 5x Optical Zoom |
| Pixel Density | 421 ppi | 505 ppi |
| Portrait Mode | Yes | — |
| Process | 5nm | — |
| Protection | Gorilla Glass Victus | Corning Gorilla Armor |
| RAM | 8GB | 12GB |
| RAM Type | LPDDR5 | LPDDR5X |
| Rear Camera | 12MP + 64MP + 12MP | 200MP + 50MP + 10MP + 12MP |
| Refresh Rate | 120Hz | 1-120Hz |
| Release Date | January 2021 | January 2024 |
| Resolution | 2400 x 1080 | 3120 x 1440 |
| Reverse Charging | — | 4.5W |
| Reverse Wireless Charging | 4.5W | — |
| S Pen | — | Integrated |
| Samsung DeX | Yes | — |
| Screen To Body Ratio | — | 89.1% |
| SIM | Nano SIM + eSIM | Nano SIM + eSIM |
| Speakers | Stereo Speakers | Stereo Speakers |
| Status | Available | Available |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB |
| Storage Type | UFS 3.1 | UFS 4.0 |
| Telephoto | 64MP Hybrid Zoom | — |
| Telephoto Camera | — | 10MP 3x Optical Zoom |
| UI | One UI | One UI 6.1 |
| Ultra Wide | 12MP | — |
| Ultra Wide Camera | — | 12MP |
| USB | USB Type-C | USB Type-C 3.2 |
| Video Recording | 8K 24fps | 8K, 4K, HDR |
| Water Resistance | IP68 | IP68 |
| Weight | 169g | 232g |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Wireless Charging | 15W | 15W |