Xiaomi Redmi 15 5G vs Samsung Galaxy S21 4G
Here you can compare Xiaomi Redmi 15 5G and Samsung Galaxy S21 4G. Comparing Xiaomi Redmi 15 5G vs Samsung Galaxy S21 4G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Xiaomi Redmi 15 5G stands against Samsung Galaxy S21 4G and which one should you buy The current lowest price found for Xiaomi Redmi 15 5G is ₹21,499 and for Samsung Galaxy S21 4G is ₹54,999. The details of both of these products were last updated on Aug 04, 2026.
| Specification | Xiaomi Redmi 15 5G | Samsung Galaxy S21 4G |
|---|---|---|
| Battery | 7000 mAh, Si-C EV-Grade Technology | 4000 mAh, Li-Po Battery |
| Rear Camera | 50 MP ƒ/1.75 (Wide Angle) | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| Internal Memory | 128 GB | 128 GB |
| RAM | 6 GB | 8 GB |
| OS | Android v15 | Android v11 |
| Price | ₹21,499 | ₹54,999 |
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Overview
| Specs Score | 61 / 100 | 70 / 100 Better Specs |
| Display Size | 6.9 in Bigger Display | 6.2 in |
| Display Resolution | 1080 x 2340 pixels | 1080 x 2400 pixels Better Resolution |
| RAM | 6 GB | 8 GB More RAM |
| CPU Clock Speed | 2.3 GHz | 2.9 GHz Faster Clock Speed |
| Rear Camera | 50 MP Dual Better Camera Resolution | 64 MP + 12 MP + 12 MP Triple |
| Front Camera | 8 MP | 10 MP Better Front Camera Resolution |
| Weight | 217 g | 169 g Lighter |
| Thickness | 8.4 mm | 7.9 mm Slimmer |
| Battery | 7000 mAh Bigger Battery | 4000 mAh |
| Unique Features | 5G FM Radio No No Memory Card Support No IR Blaster | No No Water Resistant NFC No Wireless Charging No |
General
| Country of Origin | India | |
| Model | 15 5G | Galaxy S21 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | August 01, 2025 | |
| In The Box | Mobile Phone * 1, Adapter * 1, USB Type-C cable * 1, SIM Eject Tool * 1, Quick Start Guide, & Warranty Card * 1, Safety Information * 1 |
Design
| Dimensions | 80.45 x 168.48 x 8.4 mm | 71.2 x 151.7 x 7.9 mm |
| Weight | 217 g | 169 g |
| Colors | Sandy Purple, Frosted White, Midnight Black |
Display
| Type | Color IPS Screen (16M Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes, 288 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.2 inches, 1080 x 2400 pixels, 120 Hz |
| Aspect Ratio | 20.6:9 | 20:9 |
| PPI | ~ 374 PPI | ~ 421 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 87.2% |
| Glass Type | Corning Gorilla Glass Victus | |
| Brightness | 850nits Peak Brightness | |
| HDR Support | Yes, HDR10+ | |
| Features | TÜV Rheinland Circadian Friendly, TÜV Rheinland flicker free, TÜV Rheinland Low Blue light | Always-on Display, HDR10+ |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 6 GB | 8 GB |
| RAM Type | LPDDR4X | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | UFS 3.1 |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | No |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.1, A2DP, LE | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes |
Extra
| GPS | Yes, with A-GPS, Glonass, Beidou | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Ambient Light Sensor, Proximity Sensor (Virtual), E Compass, Accelerometer | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | |
| NFC | Yes | |
| AI Features | Circle to Search, Gemini AI, AI Erase | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | Hydro Touch |
Camera
| Rear Camera | 50 MP ƒ/1.75 (Wide Angle) | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| OIS | Yes | |
| Auto Focus | Yes | |
| Features | AI Sky, AI Erase, Classic Film Filters | Auto-HDR, Panorama |
| Video Recording | 1080p @ 30 fps FHD | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash | 10 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
Technical
| OS | Android v15 | Android v11 |
| Custom UI | HyperOS 2 | |
| Chipset | Qualcomm Snapdragon 6s Gen3 | Samsung Exynos 2100 |
| CPU | 2.3 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55 | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| GPU | Adreno 619 | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Speaker Type | Bottom Firing Loud Speaker | |
| Audio Features | Dolby Certified, 200% Super Volume | |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh, Si-C EV-Grade Technology | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 18W | Yes, 4.5W |
Discuss
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