Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) vs Samsung Galaxy S24 FE 5G
Here you can compare Samsung Galaxy S21 Ultra 5G (12GB RAM … and Samsung Galaxy S24 FE 5G. Comparing Samsung Galaxy S21 Ultra 5G (12GB RAM … vs Samsung Galaxy S24 FE 5G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Samsung Galaxy S21 Ultra 5G (12GB RAM … stands against Samsung Galaxy S24 FE 5G and which one should you buy The current lowest price found for Samsung Galaxy S21 Ultra 5G (12GB RAM … is ₹1,01,999 and for Samsung Galaxy S24 FE 5G is ₹39,999. The details of both of these products were last updated on Oct 05, 2026.
| Specification | Samsung Galaxy S21 Ultra 5G (12GB RAM … | Samsung Galaxy S24 FE 5G |
|---|---|---|
| RAM | 12 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB |
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) 24mm, dual pixel PDAF, OIS 8 MP ƒ/2.4 (Telephoto) 75mm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) : 123˚ |
| OS | Android v10 | Android v14 |
| Display | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.7 inches, 1080 x 2340 pixels, 120 Hz |
| Price | ₹1,01,999 | ₹39,999 |
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Overview
| Specs Score | 80 / 100 Better Specs | 70 / 100 |
| Display Resolution | 1440 x 3200 pixels Better Resolution | 1080 x 2340 pixels |
| RAM | 12 GB More RAM | 8 GB |
| CPU Clock Speed | 2.9 GHz | 3.11 GHz Faster Clock Speed |
| CPU Cores | Octa Core | Deca Core More CPU Cores |
| Rear Camera | 108 MP Quad Better Camera Resolution | 50 MP + 12 MP + 8 MP Triple |
| Front Camera | 40 MP Better Front Camera Resolution | 10 MP |
| Weight | 227 g | 213 g Lighter |
| Thickness | 8.9 mm | 8 mm Slimmer |
| Battery | 5000 mAh Bigger Battery | 4700 mAh |
General
| Model | Galaxy S21 Ultra 5G | SM-S721B, SM-S721B/DS, SM-S721U1, SM-S721U, SM-S721W, SM-S7210, SM-S721N, SM-S721BZKBINS |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| eSIM Support | Yes | |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | September 26, 2024 |
Design
| Dimensions | 75.6 x 165.1 x 8.9 mm | 77.3 x 162 x 8 mm |
| Weight | 227 g | 213 g |
| Bezel less | Yes | |
| Colors | Blue, Graphite, Gray, Mint, Yellow |
Display
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.7 inches, 1080 x 2340 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 19.5:9 |
| PPI | ~ 515 PPI | ~ 385 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 88% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus+ |
| HDR Support | Yes, HDR10+ | Yes, HDR10+ |
| Features | Always-on Display, HDR10+ | HDR10+, 1900 nits (peak) |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 12 GB | 8 GB |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.3 |
| USB | Yes, USB-C v3.2 | Yes, USB-C |
| USB Features | USB on-the-go, USB Charging | USB on-the-go |
Performance
| AnTuTu Score | 1,778,977 (Total) (v10) 410,969 (CPU) 729,849 (GPU) 343,647 (Memory) 294,512 (UX) | |
| Geekbench Score | 5,831 (Multi Core) (v6) 1,890 (Single Core) 12,910 (OpenCL) 15,700 (Vulkan) | |
| 3DMark Score | 3,874 (Wild Life Extreme) | |
| Camera Score | 133 (DxOMark) | |
| Speaker Score | 81 (Very Good) | |
| Battery Test Result | 11.6 hours |
Extra
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes with A-GPS, Glonass, Beidou, Galileo, NavIC, QZSS |
| 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, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | SIM 1 + SIM 2/ SIM 1 + eSIM/ Dual eSIM |
Camera
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) 24mm, dual pixel PDAF, OIS 8 MP ƒ/2.4 (Telephoto) 75mm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) : 123˚ |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | HDR, Panorama |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 8K @ 24/30 fps UHD, 4K @ 30 fps UHD, 1080p @ 30 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 10 MP ƒ/2.4 (Wide Angle) 26mm Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Front Camera Features | Dual video call, Auto-HDR |
Technical
| OS | Android v10 | Android v14 |
| Chipset | Samsung Exynos 2100 | Samsung Exynos 2400e |
| CPU | 2.9 GHz, Octa Core Processor | 3.11 GHz, Deca Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 3.1GHz, 2.9GHz, 2.6GHz, 1.95GHz |
| GPU | Mali-G78 MP14 | Xclipse 940 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 4700 mAh, Li-ion Battery |
| Fast Charging | Yes, 25W Fast Charging | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 15W | Yes, 15W |
| Reverse Charging | Yes, 4.5W | Yes |
| Reverse Wireless Charging | Yes, 4.5W | |
| Video Playback Time | 28 hours | |
| Music Playback Time | 81 hours |
Discuss
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