Side-by-side technical data
Samsung Galaxy S24 FE vs Samsung Galaxy S25 FE vs Samsung Galaxy S21 FE 5G
Comparison between Samsung Galaxy S24 FE, Samsung Galaxy S25 FE and Samsung Galaxy S21 FE 5G: 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 S25 FE is the most complete choice for performance, battery capacity and fast charging, pairing UFS 4.0 with 4,900 mAh and 45 W. The Galaxy S21 FE 5G suits buyers who prioritize low weight and a high-resolution front camera; the S24 FE is worth choosing only if it costs less.
The S25 FE leads the S24 FE and S21 FE 5G in performance, with Geekbench 6 results of 2,198 and 7,000 versus 1,958 and 6,260 for the S24 FE and 1,002 and 3,014 for the S21 FE 5G. It also has Bluetooth 5.4 and Wi-Fi 6E, while the S21 FE 5G weighs 177 g against 213 g and 190 g. All three use a 120 Hz Dynamic AMOLED 2X display; the S21 FE 5G reaches 403 ppi versus 385 ppi.
The S24 FE and S25 FE are even on cameras, with a 50 MP main sensor and 13 MP ultrawide camera on each. The S21 FE 5G counters with a 32 MP front camera, but the S25 FE offers 4,900 mAh and 45 W, compared with 4,700 mAh and 25 W for the S24 FE and 4,500 mAh and 25 W for the S21 FE 5G.
Samsung Galaxy S24 FE
The Samsung Galaxy S25 FE is the better buy for performance and charging, with UFS 4.0, a 4,900 mAh battery and 45 W.
Samsung Galaxy S21 FE 5G
The Samsung Galaxy S21 FE 5G is the better buy for buyers who want low weight and a 32 MP front camera.
The verdict
Your pick: Samsung Galaxy S25 FE, ahead on Performance & hardware and Battery & charging.
| Category | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Design & display | 8.0 | 8.3 | 8.3 |
| Performance & hardware | 7.5 | 7.9 | 6.2 |
| Camera | 8.2 | 8.2 | 7.6 |
| Connectivity | 8.2 | 8.3 | 6.7 |
| Battery & charging | 7.5 | 8.2 | 7.2 |
Which one is for you?
Samsung Galaxy S25 FE, if you care about…
- Battery Capacity
- 4,900 mAh
- against 4,700 mAh · 4,500 mAh
- Storage Type
- UFS 4.0
- against UFS 3.1 · UFS 3.1
- Bluetooth Version
- Bluetooth 5.4
- against Bluetooth 5.3 · Bluetooth 5.0
- Fast Charge Power
- 45 W
- against 25 W · 25 W
Samsung Galaxy S21 FE 5G, if you care about…
- Display Pixel Density
- 403 ppi
- against 385 ppi · 385 ppi
- Weight
- 177 g
- against 213 g · 190 g
- Max. upload speed
- 3,000 Mbps
- against 2,550 Mbps · 2,550 Mbps
Specification comparison
Performance
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Processor Model | Samsung Exynos 2400e | Samsung Exynos 2400 | Qualcomm Snapdragon 888 |
| Processor Process Size | 4 nm Best value | 4 nm Best value | 5 nm |
| Graphics GPU | Xclipse 940 | Xclipse 940 | Qualcomm Adreno 660 |
| Storage Type | UFS 3.1 | UFS 4.0 Best value | UFS 3.1 |
| Maximum CPU Clock | 3.1 GHz | 3.21 GHz Best value | 2.91 GHz |
| Maximum Storage Capacity | 512 GB Best value | 512 GB Best value | 256 GB |
| AnTuTu Score | 1,969,491 Best value | 1,935,000 Best value | 749,146 |
| Geekbench 6 Single-Core | 1,958 | 2,198 Best value | 1,002 |
| Geekbench 6 Multi-Core | 6,260 | 7,000 Best value | 3,014 |
| CPU Description | 10-core CPU: 1x3.1 GHz, 2x2.9 GHz, 3x2.6 GHz, 4x1.95 GHz | 10-core CPU with one Cortex-X4 core at 3.2 GHz, two Cortex-A720 cores at 2.9 GHz, three Cortex-A720 cores at 2.6 GHz, and four Cortex-A520 cores at 1.95 GHz. | Octa-core CPU with Cortex-X1, Cortex-A78, and Cortex-A55 cores. |
| Processor Type | Deca-Core | Deca-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes | Yes |
| RAM Capacity | 8 GB | 8 GB | 8 GB |
| RAM Type | LPDDR5X Best value | LPDDR5X Best value | LPDDR5 |
| AnTuTu version | v11 | v11 | v10 |
| 3DMark Wild Life Extreme | 3,889 | 4,262 Best value | — |
Design
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Body Colors | Blue, Black, Yellow, Green, Cyan, Grey | Blue, Black, White, Cyan | White, Grey, Lavender, Green |
| Body Thickness | 8 mm | 7.4 mm Best value | 7.9 mm |
| Body Width | 77.3 mm | 76.6 mm | 74.5 mm |
| Body Height | 162 mm | 161.3 mm | 155.7 mm |
| Weight | 213 g | 190 g | 177 g Best value |
| Usable Surface | 88 % | 89.2 % Best value | 86.7 % |
| Body Materials | Glass, Aluminium Alloy | Glass, Aluminium Alloy | Glass, Plastic, Aluminium Alloy |
| Resistance Features | IP68 | IP68 | IP68 |
| Waterproof Depth | 1.5 m | 1.5 m | 1.5 m |
| Drop Resistance Class | A | A | — |
| Repairability Class | C | C | — |
| Drop Test Count | 270 | 270 | — |
Battery
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Battery Efficiency Rating | B | B | — |
| Battery Capacity | 4,700 mAh | 4,900 mAh Best value | 4,500 mAh |
| Battery Type | Li-Ion | Li-Ion | Li-Ion |
| Fast Charge Power | 25 W | 45 W Best value | 25 W |
| Battery Features | 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 | Non-Removable, Fast Charging, Wireless Charging, Reverse Wireless Charging, Reverse Charging, Rechargeable, Battery Level Indicator |
| Battery Endurance | 42 h | 42 h | — |
| Wireless charging power | 15 W | 15 W | 15 W |
| Charge cycles | 2,000 | 2,000 | — |
| Reverse wireless charging power | 4.5 W | 4.5 W | 4.5 W |
Display
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Display Aspect Ratio | 19.5:9 | 19.5:9 | 19.5:9 |
| Display Technology | Dynamic AMOLED 2X | Dynamic AMOLED 2X | Dynamic AMOLED 2X |
| Peak Display Brightness | 1,900 nits Best value | 1,900 nits Best value | 1,300 nits |
| Display Diagonal | 6.7″ Best value | 6.7″ Best value | 6.4″ |
| Display Horizontal Resolution | 1,080 px | 1,080 px | 1,080 px |
| Display Vertical Resolution | 2,340 px | 2,340 px | 2,340 px |
| Display Pixel Density | 385 ppi | 385 ppi | 403 ppi Best value |
| Display Refresh Rate | 120 Hz | 120 Hz | 120 Hz |
| Touch Sampling Rate | 240 Hz | 240 Hz | 240 Hz |
| Display Contrast Ratio | — | — | 1,000,000 :1 |
| Display Features | Hole-Punch Notch, Gorilla Glass Victus+, Mohs Level 5, HDR10+, Always-On Display, DCI-P3, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless | Gorilla Glass Victus+, Mohs Level 5, HDR10+, Always-On Display, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Frameless, Scratch Resistant, DCI-P3, Variable Refresh Rate | Gorilla Glass, HDR10, HDR10+, Always-On Display, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless |
Sensors
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Fingerprint Sensor Placement | Under Display | Under Display | Under Display |
Sensor
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Compass, Barometer, Hall Sensor, Light Sensor, Virtual Proximity Sensing | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass, Gyroscope, Barometer, Hall Sensor, Light Sensor, Virtual Proximity Sensing | Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Barometer, Hall Sensor, Light Sensor |
Software
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Operating System | Android 16 | Android 16 | Android 12 |
| OS Family | Android | Android | Android |
| OS Version | 16 Best value | 16 Best value | 12 |
| OS Update Support | 4 years Best value | 4 years Best value | 2 years |
| Google Services | Yes | Yes | Yes |
| Widevine L1 | Yes | Yes | Yes |
Connectivity
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| SIM Configurations | Single Nano-SIM, Dual Nano-SIM, Nano-SIM + eSIM, eSIM, Dual eSIM, Dual SIM Dual Standby | Single Nano-SIM, Dual Nano-SIM, Nano-SIM + eSIM, Dual eSIM, Dual SIM Dual Standby | Single Nano-SIM, Dual Nano-SIM, Dual SIM Dual Standby |
| 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 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 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 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 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 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 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 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 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 n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n20, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n77, 5G NR n78 |
| Cellular Technologies | GSM, HSPA, LTE, 5G | GSM, HSPA, LTE, 5G | GSM, CDMA, HSPA, EVDO, LTE, 5G |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6E Best value | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E Best value | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO, Tri-Band Best value | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO, Tri-Band, Wi-Fi Password Sharing Best value | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO, Wi-Fi Password Sharing |
| Bluetooth Version | Bluetooth 5.3 | Bluetooth 5.4 Best value | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE, HID | A2DP, LE, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC Best value | GPS, A-GPS, GLONASS, BeiDou, QZSS, Galileo, NavIC Best value | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | Virtual Proximity Sensing, Samsung DeX, NFC, USB Type-C, USB OTG, USB Mass Storage, USB Host 3.2, USB Charging, Computer Sync, OTA Sync, Tethering, VoLTE, VoWiFi, eSIM, DLNA | Samsung DeX, NFC, USB Type-C, USB Charging, USB Mass Storage, USB Host 3.2, USB OTG, Computer Sync, OTA Sync, Tethering, VoLTE, VoWiFi, eSIM | Samsung DeX, NFC, USB Charging, USB Mass Storage, USB OTG, USB Host, USB Host 3.1, USB Type-C, Computer Sync, OTA Sync, Tethering, VoLTE, HDMI Port, ANT+ |
| USB Version | USB 3.2 | USB 3.2 | USB Type-C |
| SAR American Head | 0.94 W/kg | 1.04 W/kg | 0.77 W/kg Best value |
| SAR American Body | 0.71 W/kg Best value | 1.03 W/kg | 0.9 W/kg |
| SAR (EU) head | 0.86 W/kg | 0.54 W/kg Best value | 0.95 W/kg |
| SAR (EU) body | 1.29 W/kg Best value | 1.57 W/kg | 1.48 W/kg |
| Max. download speed | 9,640 Mbps Best value | 9,640 Mbps Best value | 7,500 Mbps |
| Max. upload speed | 2,550 Mbps | 2,550 Mbps | 3,000 Mbps Best value |
Audio
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Microphone Count | 3 Best value | 3 Best value | 2 |
| Audio Features | Stereo Speakers, Noise-Cancellation Microphone, A2DP, LE | Stereo Speakers, Noise-Cancellation Microphone | Stereo Speakers, Dolby Atmos, Noise-Cancellation Microphone, A2DP, EDR, HID, LE |
Technical
| Specification | Galaxy S24 FE | Galaxy S25 FE | Galaxy S21 FE 5G |
|---|---|---|---|
| Launch price | 759 € | — | — |
| Model numbers | SM-S721B, SM-S721B/DS, SM-S721U1, SM-S721U, SM-S721W, SM-S7210, SM-S721N | SM-S731B, SM-S731B/DS | SM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3 |
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