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- Galaxy S21 5G vs Galaxy S24 Ultra
Samsung Galaxy S21 5G vs Samsung Galaxy S24 Ultra
What Galaxy S21 5G does better (2) and where Galaxy S24 Ultra wins (26) — every spec side by side.
vs
7.7Display9.0
5.6Performance8.3
7.9Camera9.8
3.8Battery6.8
9.4Features9.8
Dimensions
Size comparison
Galaxy S21 5GGalaxy S24 Ultra
| Galaxy S21 5G | Galaxy S24 Ultra | Difference | |
|---|---|---|---|
| Height | 151.7 mm | 162.3 mm | −10.6 mm |
| Width | 71.2 mm | 79 mm | −7.8 mm |
| Thickness | 7.9 mm | 8.6 mm | −0.7 mm |
| Weight | 169 g | 232 g | −63 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy S21 5G better than Galaxy S24 Ultra?
- Weight169 g vs 232 g+37%
- Thickness7.9 mm vs 8.6 mm+9%
Why is Galaxy S24 Ultra better than Galaxy S21 5G?
- AnTuTu score584,055 vs 1,453,4972.5×
- Main camera12 MP vs 200 MP16.7×
- Geekbench 6 (multi-core)3,238 vs 7,0762.2×
- 3DMark Wild Life Extreme1,800 vs 4,9832.8×
- Storage (max)256 GB vs 1,024 GB4×
- Optical zoom1.1× vs 5×4.5×
- Wired charging25 W vs 45 W+80%
- Battery capacity4,000 mAh vs 5,000 mAh+25%
- RAM8 GB vs 12 GB+50%
- Peak brightness1,300 nits vs 2,600 nits2×
- Major OS updates promised4 vs 7+75%
- Measured brightness856 nits vs 1,447 nits+69%
Specifications
Side by side
| Design | ||
| Weight | 169 g | 232 g |
| Thickness | 7.9 mm | 8.6 mm |
| Height | 151.7 mm | 162.3 mm |
| Width | 71.2 mm | 79 mm |
| Frame | Aluminium | Titanium |
| Back | Plastic | Glass |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | Corning Gorilla Glass Victus | Corning Gorilla Armor |
| Colours | Phantom Gray, Phantom White, Phantom Violet, Phantom Pink | Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange |
| Stylus | — | Yes |
| Display | ||
| Screen size | 6.2″ | 6.8″ |
| Panel | Dynamic AMOLED 2X | Dynamic LTPO AMOLED 2X |
| OLED panel | Yes | Yes |
| LTPO (adaptive 1–120 Hz) | — | Yes |
| Resolution (width) | 1,080 px | 1,440 px |
| Resolution (height) | 2,400 px | 3,120 px |
| Pixel density | 421 ppi | 505 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,300 nits | 2,600 nits |
| Measured brightness | 856 nits | 1,447 nits |
| Screen-to-body ratio | 87.2% | 88.5% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Exynos 2100 - International | Qualcomm SM8650-AC Snapdragon 8 Gen 3 |
| Chip maker | Qualcomm | Qualcomm |
| Process | 5 nm | 4 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.9 GHz | 3.39 GHz |
| GPU | Mali-G78 MP14 - International Adreno 660 - USA/China | Adreno 750 |
| AnTuTu score | 584,055 | 1,453,497 |
| Geekbench 6 (multi-core) | 3,238 | 7,076 |
| 3DMark Wild Life Extreme | 1,800 | 4,983 |
| Memory | ||
| RAM | 8 GB | 12 GB |
| Storage (max) | 256 GB | 1,024 GB |
| Storage (base) | 128 GB | 256 GB |
| Storage type | UFS 3.1 | UFS 4.0 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 12 MP | 200 MP |
| Main camera aperture | f/1.8 | f/1.7 |
| Main sensor size | 1/1.76" | 1/1.3" |
| Rear cameras | 3 | 4 |
| Optical stabilisation | Yes | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | Yes | Yes |
| Optical zoom | 1.1× | 5× |
| Max video | 8K | 8K |
| 4K video frame rate | 60 fps | 120 fps |
| Selfie camera | 10 MP | 12 MP |
| 4K selfie video | Yes | Yes |
| Battery | ||
| Battery capacity | 4,000 mAh | 5,000 mAh |
| Battery type | Li-Ion | Li-Ion |
| Active use (test) | — | 13.8 h |
| Wired charging | 25 W | 45 W |
| Charged in 30 min | 55% | 65% |
| Wireless charging | Yes | Yes |
| Wireless charging power | 15 W | 15 W |
| Reverse wireless charging | Yes | Yes |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | Yes | Yes |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5 | 5.3 |
| NFC | Yes | Yes |
| USB | USB Type-C 3.2 | USB Type-C 3.2 |
| USB version | 3.2 | 3.2 |
| Video output | — | Yes |
| Ultra Wideband | — | Yes |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Loudspeaker loudness | -26.4 LUFS | -24.6 LUFS |
| Fingerprint sensor | Under display, ultrasonic | Under display, ultrasonic |
| Barometer | Yes | Yes |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
| SAR (head) | 0.46 W/kg | 1.06 W/kg |
| Software | ||
| OS at launch | Android 11 | Android 14 |
| Platform | Android | Android |
| Interface | One UI 7 | One UI 9 |
| Major OS updates promised | 4 | 7 |
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