Realme C21 vs Realme C15
Here you can compare Realme C21 and Realme C15. Comparing Realme C21 vs Realme C15 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C21 stands against Realme C15 and which one should you buy The current lowest price found for Realme C21 is ₹6,490 and for Realme C15 is ₹7,324. The details of both of these products were last updated on Nov 22, 2025.
| Specification | Realme C21 | Realme C15 |
|---|---|---|
| CPU | 2.3 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| OS | Android v10, upgradable to v11 | Android v10, upgradable to v11 |
| Display | 6.5 inches, 1600 x 720 pixels, 60 Hz | 6.52 inches, 720 x 1600 pixels, 60 Hz |
| Internal Memory | 32 GB | 32 GB |
| RAM | 3 GB | 3 GB |
| Price | ₹6,490 | ₹7,324 |
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Overview
| Specs Score | 61 / 100 | 67 / 100 Better Specs |
| Front Camera | 5 MP | 8 MP Better Front Camera Resolution |
| Weight | 190 g Lighter | 209 g |
| Thickness | 8.9 mm Slimmer | 9.8 mm |
| Battery | 5000 mAh | 6000 mAh Bigger Battery |
| Unique Features | No No Reverse Charging | Fast Charging FM Radio No |
General
| Model | RMX3201, C21 | C15 |
| 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 | April 8, 2021 | August 18, 2020 |
Design
| Dimensions | 76.4 x 165.2 x 8.9 mm | 75.9 x 164.5 x 9.8 mm |
| Weight | 190 g | 209 g |
Display
| Type | Color IPS LCD Screen (16.7M) | Color IPS LCD Screen (16.7M) |
| Touch | Yes, 120 Hz Touch Sampling Rate | Yes |
| Size | 6.5 inches, 1600 x 720 pixels, 60 Hz | 6.52 inches, 720 x 1600 pixels, 60 Hz |
| Aspect Ratio | 20:09 | 20:9 |
| PPI | ~ 269 PPI | ~ 269 PPI |
| Screen to Body Ratio | ~ 89.5% | ~ 88.7% |
| Glass Type | Corning Gorilla Glass | |
| Features | 120 Hz Touch , Sunlight Screen Support, COG Sealing Process, WideVine L3 | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch |
Memory
| RAM | 3 GB | 3 GB |
| Storage | 32 GB | 32 GB |
| Card Slot | Yes, upto 256 GB | Yes, upto 256 GB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v5.0, A2DP, LE, aptX |
| USB | Yes, microUSB | Yes, microUSB v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
Extra
| GPS | Yes | Yes, with A-GPS, Glonass, Beidou |
| Fingerprint Sensor | Yes, Rear | Yes, Rear |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Extra Features | Night Shield, Step Tracker, Game Space, APP Market, Theme Store, Clone Phone, Phone Manager, Telephone Number Identification, TUV Rheinland Certified |
Camera
| Rear Camera | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Mono | 13 MP ƒ/2.2 (Main) 8 MP ƒ/2.25 (Ultra Wide) 2 MP ƒ/2.4 Mono 2 MP ƒ/2.4 Retro |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | Supports 20 Continuous Shooting, Photograph Functions: Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, Ultra Macro, AI Beauty, Filter, Chroma Boost, Video Recording Functions: Filter, Slow Motion, HDR | Chroma Boost, Ultra-wide Mode, Beauty, Filter, HDR Mode, Panoramic View, Portrait, Timelapse, Slo-mo, Super NightScape, Expert Mode |
| Video Recording | 720p, 720P | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP | 8 MP ƒ/2 (Main) |
| Front Video Recording | 720p | 1080p @ 30 fps FHD |
Technical
| OS | Android v10, upgradable to v11 | Android v10, upgradable to v11 |
| Chipset | MediaTek Helio G35 | MediaTek Helio G35 |
| CPU | 2.3 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | Arm Cortex-A53 | Octa-core 2.3 GHz Cortex-A53 |
| GPU | IMG GE8320 | PowerVR GE8320 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG, VORBIS |
| Video | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV |
| FM Radio | No | Yes |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, 18W Fast Charging | |
| Reverse Charging | Yes | |
| StandBy Time | 57 days | |
| Talk Time | 46 hours | |
| Music Playback Time | 60 hours |
Discuss
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