Realme C21Y vs Xiaomi Redmi 15C 4G
Here you can compare Realme C21Y and Xiaomi Redmi 15C 4G. Comparing Realme C21Y vs Xiaomi Redmi 15C 4G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C21Y stands against Xiaomi Redmi 15C 4G and which one should you buy The current lowest price found for Realme C21Y is ₹9,997 and for Xiaomi Redmi 15C 4G is ₹10,990. The details of both of these products were last updated on Jun 06, 2026.
| Specification | Realme C21Y | Xiaomi Redmi 15C 4G |
|---|---|---|
| Internal Memory | 32 GB | 128 GB |
| OS | Android v11 | Android v15 |
| Rear Camera | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Portrait | 50 MP ƒ/1.8 (Wide Angle) ƒ/3 |
| Display | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.9 inches, 720 x 1600 pixels, 120 Hz |
| Battery | 5000 mAh, Li-Po Battery | 6000 mAh, Li-Po Battery |
| Price | ₹9,997 | ₹10,990 |
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Overview
| Specs Score | 37 / 100 | 54 / 100 Better Specs |
| Display Size | 6.5 in | 6.9 in Bigger Display |
| RAM | 3 GB | 4 GB More RAM |
| Storage | 32 GB | 128 GB More Storage |
| CPU Clock Speed | 1.8 GHz | 2 GHz Faster Clock Speed |
| Rear Camera | 13 MP + 2 MP + 2 MP Triple | 50 MP Dual Better Camera Resolution |
| Front Camera | 5 MP | 8 MP Better Front Camera Resolution |
| Thickness | 9.1 mm | 8 mm Slimmer |
| Battery | 5000 mAh | 6000 mAh Bigger Battery |
| Unique Features | No No No No | Fast Charging FM Radio Water Resistant NFC |
General
| Model | C21Y | 25078RA3EA, 25078RA3EL |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 23, 2021 | August 01, 2025 |
Design
| Dimensions | 76 x 164.5 x 9.1 mm | 79.5 x 171.6 x 8 mm |
| Weight | 200 g | 205 g |
| Colors | Moonlight Blue, Mint Green, Midnight Gray, Twilight Orange |
Display
| Type | Color IPS LCD Screen (16.7M) | Color IPS Screen (16M Colors) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.9 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20.6:9 |
| PPI | ~ 269 PPI | ~ 254 PPI |
| Screen to Body Ratio | ~ 88.7% | ~ 84.3% |
| Glass Type | Corning Gorilla Glass 3 | |
| Brightness | Brightness: 660 nits (typ), 810 nits HBM | |
| Features | Sunlight Screen Support, COG Sealing Process | |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
Memory
| RAM | 3 GB | 4 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 32 GB | 128 GB |
| Storage Type | eMMC 5.1 | |
| Card Slot | Yes, upto 256 GB | Yes, (Hybrid Slot) |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v5.4, A2DP, LE |
| USB | Yes, microUSB | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | No |
Extra
| GPS | With A-GPS, Beidou, Glonass | Yes, with A-GPS, Glonass, Beidou |
| Fingerprint Sensor | Yes, Rear | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro-meter, Acceleration Sensor, Compass | Accelerometer, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Water Resistance | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes |
Camera
| Rear Camera | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Portrait | 50 MP ƒ/1.8 (Wide Angle) ƒ/3 |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | Beauty, Filter, HDR, Panoramic View, Refocus, Timelapse, Slo-mo, NightScape, Expert | HDR |
| Video Recording | 1080p @ 30 fps FHD, 720P | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 Screen Flash | 8 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 720p | 1080p @ 30 fps FHD |
Technical
| OS | Android v11 | Android v15 |
| Custom UI | HyperOS | |
| Chipset | Unisoc T610 | Mediatek Helio G81 Ultra |
| CPU | 1.8 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| GPU | Mali-G52 | Mali-G52 MC2 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | MPEG, AMRNB, AMRWB, AAC, G711.ALAW, G711.MLAW, VORBIS, OPUS, FLAC | Yes |
| Video | H.264, MPEG-4, H.263, Sorenson Spark, VP8, VP9, H.265 | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W |
Discuss
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