Realme Narzo 20 vs Realme C21 (4GB RAM + 64GB)
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Overview
| Specs Score | 71 / 100 Better Specs | 64 / 100 | 
| CPU Clock Speed | 2 GHz | 2.3 GHz Faster Clock Speed | 
| Rear Camera | 48 MP + 8 MP + 2 MP Triple Better Camera Resolution | 13 MP + 2 MP + 2 MP Triple | 
| Front Camera | 8 MP Better Front Camera Resolution | 5 MP | 
| Weight | 208 g | 190 g Lighter | 
| Thickness | 9.8 mm | 8.9 mm Slimmer | 
| Battery | 6000 mAh Bigger Battery | 5000 mAh | 
| Unique Features |  Fast Charging  FM Radio |  No  No | 
General
| Model | Narzo 20 | RMX3201, C21 | 
| 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 | September 21, 2020 | April 8, 2021 | 
Design
| Dimensions | 75.9 x 164.5 x 9.8 mm | 76.4 x 165.2 x 8.9 mm | 
| Weight | 208 g | 190 g | 
Display
| Type | Color IPS LCD Screen (16.7M) | Color IPS LCD Screen (16.7M) | 
| Touch | Yes | Yes, 120 Hz Touch Sampling Rate | 
| Size | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.5 inches, 1600 x 720 pixels, 60 Hz | 
| Aspect Ratio | 20:9 | 20:09 | 
| PPI | ~ 270 PPI | ~ 269 PPI | 
| Screen to Body Ratio | ~ 88.7% | ~ 89.5% | 
| Glass Type | 2.5D Glass with Gorilla Glass 3 | |
| Features | 120 Hz Touch , Sunlight Screen Support, COG Sealing Process, WideVine L3 | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch | 
Memory
| RAM | 4 GB | 4 GB | 
| Storage | 64 GB | 64 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, Dual Stand-By | Yes | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.0 | 
| USB | Yes, USB-C v2.0 | Yes, microUSB | 
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging | 
Extra
| GPS | yes with A-GPS, Beidou, Glonass | Yes | 
| Fingerprint Sensor | Yes, Rear | Yes, Rear | 
| Face Unlock | Yes | Yes | 
| Sensors | Light sensor, Proximity sensor, Accelerometer, Gyroscope | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor | 
| 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 | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.3 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Mono | 
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes | 
| Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | 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 | 
| Video Recording | 1080p @ 30 fps FHD | 720p, 720P | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 8 MP ƒ/2 (Main) | 5 MP | 
| Front Video Recording | 1080p @ 30 fps FHD | 720p | 
Technical
| OS | Android v10, upgradable to v11 | Android v10, upgradable to v11 | 
| Chipset | MediaTek Helio G85 | MediaTek Helio G35 | 
| CPU | 2 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor | 
| Core Details | 2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55 | Arm Cortex-A53 | 
| GPU | Mali-G52 | IMG GE8320 | 
| Java | No | No | 
| Browser | Yes, supports HTML5 | Yes | 
Multimedia
| Yes | Yes | |
| Music | AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, MKA | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | 
| Video | MP4, 3GP, ASF, AVI, FLV, MKV, MPG, WEBM, WMV | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | 
| FM Radio | Yes | No | 
| Document Reader | Yes | 
Battery
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 6000 mAh, Li-ion Battery | 5000 mAh, Li-Po Battery | 
| Fast Charging | Yes, 18W Fast Charging | |
| Reverse Charging | Yes | Yes | 
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