Both Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) and Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) comes with same RAM. Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) has more internal memory than Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB)
| Name | Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) | Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) | 
| RAM | 8 GB | 8 GB | 
|---|---|---|
| Display | 6.4 in | 6.4 in | 
| Internal Memory | 128 GB | 256 GB | 
| Battery | 4500 mAh | 4500 mAh | 
| Camera | 12 MP + 12 MP + 8 MP Triple | 50 MP + 12 MP + 8 MP Triple | 
| Price | Rs. 28990 | Rs. 44994 | 
The launch Date of the first phone is july 10, 2023. The cost of Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) is Rs. 28990. The launch Date of the second phone is October 05, 2023. The cost of Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) is Rs. 44994.
There is Screen Type in both the phones. Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) has display density of 411 PPI & Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) has only 405 PPI display density. Both phones have same aspect ratio of 19.5:9.
Both mobiles come with 8 GB RAM Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) has more Internal Memory (256 GB) than Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) (128 GB).
Samsung Galaxy S23 FE 5G (8GB RAM + 256GB)'s 50 MP + 12 MP + 8 MP Triple Rear Camera outclasses Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB)'s 12 MP + 12 MP + 8 MP Triple Rear Camera in terms of resolution. Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Samsung Galaxy S23 FE 5G (8GB RAM + 256GB)'s 10 MP Front Camera.
Both the phones run on Android Operating System Version 13.
| Name | Samsung Galaxy S21 FE (Snapdragon + 8GB RAM + 128GB) | Samsung Galaxy S23 FE 5G (8GB RAM + 256GB) | 
| General | ||
| Model | Galaxy S21 FE 5G | Galaxy S23 FE | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano+Nano SIM | Nano+Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | july 10, 2023 | October 05, 2023 | 
| Design | ||
| Dimensions | 74.5 x 155.7 x 7.9 mm | 76.5 x 158 x 8.2 mm | 
| Weight | 177 g | 209 g | 
| Bezel less | Yes | |
| Colors | Navy, Olive, Graphite, Lavender, White | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color Dynamic AMOLED 2X (16M Colors) | 
| Touch | Yes | Yes | 
| Size | 6.4 inches, 1080 x 2340 pixels, 120 Hz | 6.4 inches, 1080 x 2340 pixels, 120 Hz | 
| Aspect Ratio | 19.5:9 | 19.5:9 | 
| PPI | ~ 411 PPI | ~ 405 PPI | 
| Screen to Body Ratio | ~ 85.3% | |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass 5 | 
| Features | Intelligent Eye Comfort Shield, Smooth Scrolling | HDR10+ | 
| Notch | Yes, Punch Hole | Yes, Punch Hole | 
| Memory | ||
| RAM | 8 GB | 8 GB | 
| Storage | 128 GB | 256 GB | 
| Card Slot | No | No | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | Yes | 
| 5G Bands | FDD Sub6: N1(2100), N3(1800), N5(850), N7(2600), N8(900), N20(800), N28(700), N66(AWS-3), TDD Sub6: N38(2600), N40(2300), N41(2500), N78(3500) | FDD Sub6 N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N20(800), N28(700), N66(AWS-3), TDD Sub6 N38(2600), N40(2300), N41(2500), N77(3700), N78(3500) | 
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By | 
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | 802.11 a/b/g/n/ac/ax 2.4G+5GHz | 802.11 a/b/g/n/ac/ax 2.4G+5GHz+6GHz, HE160, MIMO, 1024-QAM | 
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.3 | 
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go | 
| Extra | ||
| GPS | Yes, with GPS, Glonass, Beidou, Galileo, QZSS | Yes with A-GPS | 
| Fingerprint Sensor | Yes, In Display | Yes, In Display | 
| Face Unlock | Yes | Yes | 
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Virtual Proximity Sensing | 
| 3.5mm Headphone Jack | No | No | 
| NFC | Yes | Yes | 
| Water Resistance | Yes, 1.5 m upto 30 min | Yes | 
| IP Rating | IP68 | IP68 | 
| Dust Resistant | Yes | Yes | 
| Extra Features | Aluminum Frame , Dual Stereo Speaker, Embedded-SIM, AI Mobile (Galaxy Mobile) | |
| Camera | ||
| Rear Camera | 12 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide)  | 50 MP (Main) OIS 12 MP (Ultra Wide) 8 MP (Telephoto) 3X Optical Zoom  | 
| OIS | Yes | Yes | 
| Auto Focus | Yes | Yes | 
| Features | Auto-HDR, Panorama | Digital Zoom, Auto Flash, Face detection, Touch to focus | 
| Video Recording | 4K @ 60 fps UHD, 1080p, 720p | 8K @ 24 fps UHD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 32 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash  | 10 MP Punch Hole  | 
| Front Video Recording | 4K, 1080p | |
| Technical | ||
| OS | Android v13 | Android v13 | 
| Chipset | Qualcomm Snapdragon 888 | Samsung Exynos 2200 | 
| CPU | 2.84 GHz, Octa Core Processor | 2.8 GHz, Octa Core Processor | 
| Core Details | 1x2.84 GHz Kryo 680 (Cortex X1) + 3x2.42 GHz Kryo 680 (Cortex A78) + 4x1.8 GHz Kryo 680 (Cortex A55) | 1x2.8 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510 | 
| GPU | Adreno 660 | Xclipse 920 | 
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes | 
| Video | Yes | Yes | 
| FM Radio | Yes | Yes | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 4500 mAh, Li-Po Battery | 4500 mAh, Li-Po Battery | 
| Fast Charging | Yes, 25W Fast Charging | Yes, 25W | 
| Wireless Charging | Yes, 15W | Yes | 
| Reverse Charging | Yes | |