Side-by-side technical data
Samsung Galaxy S21+ 5G vs Samsung Galaxy S23 Plus vs Samsung Galaxy S24 Plus
Comparison between Samsung Galaxy S21+ 5G, Samsung Galaxy S23 Plus and Samsung Galaxy S24 Plus: camera, battery, fast charging, display, performance and colors, side by side. More phones from Samsung.
NeoTeo's verdict
Which of the two is the better buy
The Samsung Galaxy S24 Plus is the choice for buyers seeking the most advanced display and performance, while the S23 Plus suits those who prioritize optical zoom and Wi-Fi connectivity. The S21+ 5G trails and is the better buy only if it costs less.
The S24 Plus leads the display with 2600 nits, 1440 px by 3120 px resolution, and 513 ppi, versus 1750 nits, 1080 px by 2340 px, and 393 ppi on the S23 Plus; the S21+ 5G offers 1300 nits, 1080 px by 2400 px, and 394 ppi. For performance, the S24 Plus combines 12 GB of RAM with a Geekbench 6 Single-Core score of 2192, versus 8 GB and 1857 on the S23 Plus and 8 GB and 1334 on the S21+ 5G.
The S23 Plus and S24 Plus share a 50 MP main camera, 3 x telephoto, and 12 MP front camera, while the S21+ 5G offers 12 MP, 1.1 x, and 10 MP. The S24 Plus has a 4900 mAh battery versus 4700 mAh in the S23 Plus and 4800 mAh in the S21+ 5G; the S23 Plus and S24 Plus charge at 45 W, versus 25 W. The S23 Plus adds Wi-Fi 7, while the S24 Plus stops at Wi-Fi 6E.
Samsung Galaxy S21+ 5G
The Samsung Galaxy S24 Plus is the best choice for display and performance: 2600 nits, 12 GB of RAM, and 2192 Geekbench 6 Single-Core points.
Samsung Galaxy S24 Plus
The Samsung Galaxy S21+ 5G is the better buy only if it costs less; its 25 W charging trails the newer models’ 45 W.
The verdict
Your pick: Samsung Galaxy S24 Plus, ahead on Performance & hardware, Connectivity and Battery & charging.
| Category | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Design & display | 8.1 | 8.5 | 8.8 |
| Performance & hardware | 6.5 | 8.1 | 8.5 |
| Camera | 6.7 | 7.8 | 7.8 |
| Connectivity | 7.5 | 8.5 | 9.0 |
| Battery & charging | 7.0 | 7.9 | 8.2 |
Which one is for you?
Samsung Galaxy S23 Plus, if you care about…
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be)
- against Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) · Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 6 (802.11ax), Wi-Fi 6E
- OS Version
- 16
- against 15 · 14
- Max. download speed
- 10,000 Mbps
- against 3,000 Mbps · 9,640 Mbps
- Max. upload speed
- 3,000 Mbps
- against 422 Mbps · 2,550 Mbps
Samsung Galaxy S24 Plus, if you care about…
- RAM Capacity
- 12 GB
- against 8 GB · 8 GB
- Peak Display Brightness
- 2,600 nits
- against 1,300 nits · 1,750 nits
- Display Pixel Density
- 513 ppi
- against 394 ppi · 393 ppi
- Geekbench 6 Single-Core
- 2,192
- against 1,334 · 1,857
Specification comparison
Performance
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Processor Model | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Gen 2 | Samsung Exynos 2400 |
| Processor Process Size | 5 nm | 4 nm Best value | 4 nm Best value |
| Graphics GPU | Mali-G78 MP14 | Qualcomm Adreno 740 | Xclipse 940 |
| Storage Type | UFS 3.1 | UFS 4.0 Best value | UFS 4.0 Best value |
| Maximum CPU Clock | 2.91 GHz | 3.36 GHz | 3.39 GHz Best value |
| Maximum Storage Capacity | 256 GB | 512 GB Best value | 512 GB Best value |
| AnTuTu Score | 749,100 | 1,751,221 Best value | 1,935,000 Best value |
| Geekbench 6 Single-Core | 1,334 | 1,857 | 2,192 Best value |
| Geekbench 6 Multi-Core | 3,339 | 4,917 | 7,003 Best value |
| CPU Description | Octa-core processor with Cortex-X1, Cortex-A78 and Cortex-A55 cores. | Octa-core CPU with one Cortex-X3 at 3.36 GHz, four Cortex-A715/A710 cores at 2.8 GHz, and three Cortex-A510 cores at 2.0 GHz. | Octa-core or deca-core CPU configurations are listed depending on region. |
| Processor Type | Octa-Core | Octa-Core | Deca-Core |
| 64-Bit Processor | Yes | Yes | Yes |
| RAM Capacity | 8 GB | 8 GB | 12 GB Best value |
| RAM Type | LPDDR5 | LPDDR5X Best value | LPDDR5X Best value |
| AnTuTu version | v10 | v11 | v11 |
| 3DMark Wild Life Extreme | — | — | 4,365 |
Design
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Body Colors | Black, Gold, Silver, Red, Purple, Pink | Black, White, Grey, Green, Lime, Cream, Lavender | Black, Grey, Purple, Yellow, Green, Orange, Cyan, Blue |
| Body Thickness | 7.8 mm | 7.6 mm Best value | 7.7 mm |
| Body Width | 75.6 mm | 76.2 mm | 75.9 mm |
| Body Height | 161.5 mm | 157.8 mm | 158.5 mm |
| Weight | 200 g | 196 g Best value | 197 g |
| Usable Surface | 88.3 % | 89 % | 91.6 % Best value |
| Body Materials | Glass, Aluminium Alloy, Plastic | Glass, Aluminium Alloy | Glass, Aluminium Alloy |
| Resistance Features | IP68 | IP68 | IP68 |
| Waterproof Depth | 1.5 m | 1.5 m | 1.5 m |
Battery
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Battery Capacity | 4,800 mAh | 4,700 mAh | 4,900 mAh Best value |
| Battery Type | Li-Polymer | Li-Ion | Li-Ion |
| Fast Charge Power | 25 W | 45 W Best value | 45 W Best value |
| Battery Features | Non-Removable, Rechargeable, Fast Charging, Wireless Charging, Reverse Wireless Charging, Battery Level Indicator | Fast Charging, Wireless Charging, Reverse Wireless Charging, Reverse Charging, Bypass Charging, Rechargeable, Battery Level Indicator, Non-Removable | Non-Removable, Fast Charging, Wireless Charging, Reverse Wireless Charging, Reverse Charging, Bypass Charging, Rechargeable, Battery Level Indicator |
| Wireless charging power | 15 W | 15 W | 15 W |
| Reverse wireless charging power | 4.5 W | 4.5 W | 4.5 W |
Display
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Display Aspect Ratio | 20:9 | 19.5:9 | 19.5:9 |
| Display Technology | Dynamic AMOLED 2X | Dynamic AMOLED 2X | Dynamic AMOLED 2X |
| Peak Display Brightness | 1,300 nits | 1,750 nits | 2,600 nits Best value |
| Display Diagonal | 6.7″ Best value | 6.6″ | 6.7″ Best value |
| Display Horizontal Resolution | 1,080 px | 1,080 px | 1,440 px Best value |
| Display Vertical Resolution | 2,400 px | 2,340 px | 3,120 px Best value |
| Display Pixel Density | 394 ppi | 393 ppi | 513 ppi Best value |
| Display Refresh Rate | 120 Hz | 120 Hz | 120 Hz |
| Touch Sampling Rate | — | 240 Hz | 240 Hz |
| Display Contrast Ratio | 3,000,000 :1 | 3,000,000 :1 | — |
| Display Features | Gorilla Glass Victus, HDR10+, HDR10, Always-On Display, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless | Gorilla Glass Victus 2, HDR10, HDR10+, Always-On Display, Hole-Punch Notch, Variable Refresh Rate, DC Dimming, DCI-P3, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless | Hole-Punch Notch, Gorilla Glass Victus 2, HDR10, HDR10+, Always-On Display, Variable Refresh Rate, LTPO, DC Dimming, DCI-P3, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless |
Sensors
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Fingerprint Sensor Placement | Under Display | Under Display | Under Display |
Sensor
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Barometer, Hall Sensor, Light Sensor | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Barometer, Hall Sensor, Light Sensor | Fingerprint Sensor, Accelerometer, Barometer, Compass, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor |
Software
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Operating System | Android 15 | Android 16 | Android 14 |
| OS Family | Android | Android | Android |
| OS Version | 15 | 16 Best value | 14 |
| OS Update Support | 2 years | 4 years Best value | 4 years Best value |
| Google Services | Yes | Yes | Yes |
| Widevine L1 | Yes | — | Yes |
Connectivity
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| SIM Configurations | Nano-SIM + eSIM, Dual Nano-SIM + eSIM, Dual SIM Dual Standby | Nano-SIM + eSIM, Dual Nano-SIM + eSIM, Dual SIM Dual Standby | Dual Nano-SIM, Nano-SIM + eSIM, Dual Nano-SIM + eSIM, Dual SIM Dual Standby, Dual SIM, eSIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B14, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, LTE B28, 4G LTE B30, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B46, 4G LTE B48, 4G LTE B66, 4G LTE B71, 5G NR n2, 5G NR n5, 5G NR n25, 5G NR n41, 5G NR n66, 5G NR n71, 5G NR n260, 5G NR n261 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B32, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B66, 5G NR n1, 5G NR n2, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n12, 5G NR n20, 5G NR n25, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n75, 5G NR n77, 5G NR n78 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B32, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B66, 5G NR n1, 5G NR n2, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n12, 5G NR n20, 5G NR n25, 5G NR n26, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n75, 5G NR n77, 5G NR n78 |
| Cellular Technologies | GSM, CDMA, HSPA, EVDO, LTE, 5G | GSM, CDMA, HSPA, EVDO, LTE, 5G | GSM, CDMA, HSPA, EVDO, LTE, 5G |
| Wi-Fi Standards | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be) Best value | Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 6 (802.11ax), Wi-Fi 6E |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display | Tri-Band, Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO Best value | Tri-Band, Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO Best value |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.3 Best value | Bluetooth 5.3 Best value |
| Bluetooth Profiles | A2DP, LE | A2DP, LE, HID | A2DP, LE, EDR, HID |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS Best value | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS Best value |
| Connectivity Features | Samsung DeX, UWB, NFC, FM Radio, USB Charging, USB Mass Storage, USB OTG, USB Type-C, USB Host 3.1, Computer Sync, OTA Sync, Tethering, eSIM, ANT+ | NFC, eSIM, USB Charging, USB Mass Storage, USB OTG, USB Host 3.1, USB Type-C, Computer Sync, OTA Sync, Tethering, Samsung DeX, UWB | Samsung DeX, UWB, NFC, USB Type-C, DisplayPort output, USB OTG, eSIM, VoLTE, VoWiFi, Tethering, OTA Sync, USB Charging, USB Mass Storage, Computer Sync, Satellite Connectivity |
| USB Version | USB 3.2 | USB 3.2 | USB 3.2 Gen 1 |
| SAR American Head | 0.65 W/kg Best value | 0.95 W/kg | 1.16 W/kg |
| SAR American Body | 0.95 W/kg | 1.04 W/kg | 0.84 W/kg Best value |
| SAR (EU) head | 0.54 W/kg Best value | 0.77 W/kg | 0.74 W/kg |
| SAR (EU) body | 1.33 W/kg | 1.45 W/kg | 1.25 W/kg Best value |
| Max. download speed | 3,000 Mbps | 10,000 Mbps Best value | 9,640 Mbps |
| Max. upload speed | 422 Mbps | 3,000 Mbps Best value | 2,550 Mbps |
Audio
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Microphone Count | 2 | 3 Best value | 3 Best value |
| Audio Features | Stereo Speakers, Dolby Atmos, Hi-Res Audio, Noise-Cancellation Microphone, A2DP, LE, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, ANT+ | Stereo Speakers, Dolby Atmos, Hi-Res Audio, A2DP, LE, HID | Stereo Speakers, Noise-Cancellation Microphone, A2DP, LE, HID, EDR |
Technical
| Specification | Galaxy S21+ 5G | Galaxy S23 Plus | Galaxy S24 Plus |
|---|---|---|---|
| Launch price | — | — | 1,159 € |
| Model numbers | SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N, SM-G9960 | SM-S916B, SM-S916B/DS, SM-S916U, SM-S916U1, SM-S916W, SM-S916N, SM-S9160, SM-S916E, SM-S916E/DS | SM-S926B, SM-S926B/DS, SM-S926U, SM-S926U1, SM-S926W, SM-S926N, SM-S9260, SM-S926E, SM-S926E/DS |
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