Samsung Galaxy S21 Ultra 5G (12GB RAM + 128GB) vs Samsung Galaxy S25 FE
Here you can compare Samsung Galaxy S21 Ultra 5G (12GB RAM … and Samsung Galaxy S25 FE. Comparing Samsung Galaxy S21 Ultra 5G (12GB RAM … vs Samsung Galaxy S25 FE 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 S25 FE 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 S25 FE is ₹46,973. The details of both of these products were last updated on Jun 10, 2026.
| Specification | Samsung Galaxy S21 Ultra 5G (12GB RAM … | Samsung Galaxy S25 FE |
|---|---|---|
| Battery | 5000 mAh, Li-Po Battery | 4900 mAh |
| RAM | 12 GB | 8 GB |
| Internal Memory | 128 GB | 128 GB |
| Display | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.7 inches, 1080 x 2340 pixels, 120 Hz |
| 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 (wide), 1/1.57", 1.0µm, dual pixel PDAF, OIS 8 MP ƒ/2.4 (Telephoto) 75mm (telephoto), 1/4.4", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) 13mm, 123˚ (ultrawide), 1/3.0", 1.12µm |
| Price | ₹1,01,999 | ₹46,973 |
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Overview
| Specs Score | 80 / 100 Better Specs | 77 / 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 | 3.2 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 | 12 MP |
| Weight | 227 g | 190 g Lighter |
| Thickness | 8.9 mm | 7.4 mm Slimmer |
| Unique Features | Reverse Charging | No |
General
| Model | Galaxy S21 Ultra 5G | SM-S731B, SM-S731B/DS |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano-SIM, Nano-SIM + Nano-SIM, Nano-SIM + eSIM, eSIM + eSIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 7 years | |
| Security Updates | 7 years | |
| Release Date | January 14, 2021 | September 04, 2025 |
Design
| Dimensions | 75.6 x 165.1 x 8.9 mm | 76.6 x 161.3 x 7.4 mm |
| Weight | 227 g | 190 g |
| Bezel less | Yes | |
| Colors | Icyblue, Jetblack, Navy, White |
Display
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (1B 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% | ~ 89.2% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus+, Mohs level 5 |
| Brightness | HDR10+, 1900 nits (peak) | |
| HDR Support | Yes, HDR10+ | |
| Features | Always-on Display, HDR10+ | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 12 GB | 8 GB |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 4 |
| Card Slot | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G* FDD Sub6: N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N12(700), N20(800), N25(1900), N26(850), N28(700), N66(AWS-3), 5G* 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 | 802.11a/b/g/n/ac/ax 2.4GHz+5GHz+6GHz, HE160, MIMO, 1024-QAM | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.4 |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go |
Performance
| AnTuTu Score | 1,802,927 (Total) (v10) 683,791 (CPU) 506,481 (GPU) 234,652 (Memory) 378,003 (UX) | |
| Geekbench Score | 6,659 (Multi Core) (v6) 1,977 (Single Core) 13,809 (OpenCL) 18,377 (Vulkan) | |
| 3DMark Score | 4,095 (Wild Life Extreme) | |
| Camera Score | 118 (DxOMark) | |
| Speaker Score | 76 (Very Good) | |
| Battery Test Result | 11.5 hours |
Extra
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | 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, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| AI Features | Galaxy AI, Galaxy AI's Call Assist (e.g. Live Translate), Note Assist, Browsing Assist, Interpreter, and Transcript Assist | |
| 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 | Samsung DeX Support |
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 (wide), 1/1.57", 1.0µm, dual pixel PDAF, OIS 8 MP ƒ/2.4 (Telephoto) 75mm (telephoto), 1/4.4", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) 13mm, 123˚ (ultrawide), 1/3.0", 1.12µm |
| 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 @ 30 fps UHD, 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 12 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
Technical
| OS | Android v10 | Android v16 |
| Chipset | Samsung Exynos 2100 | Samsung Exynos 2400 |
| CPU | 2.9 GHz, Octa Core Processor | 3.2 GHz, Deca Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x3.2GHz Cortex-X4 & 2x2.9GHz Cortex-A720 & 3x2.6GHz Cortex-A720 & 4x1.95GHz Cortex-A520 |
| 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 | 4900 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 45W |
| Wireless Charging | Yes, 15W | Yes, 15W |
| Reverse Charging | Yes, 4.5W | |
| Reverse Wireless Charging | Yes |
Discuss
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