Realme C21 vs Vivo X300
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Overview
| Specs Score | 61 / 100 | 93 / 100 Better Specs |
| Display Resolution | 1600 x 720 pixels | 1216 x 2640 pixels Better Resolution |
| RAM | 3 GB | 12 GB More RAM |
| Storage | 32 GB | 256 GB More Storage |
| CPU Clock Speed | 2.3 GHz | 4.21 GHz Faster Clock Speed |
| Rear Camera | 13 MP + 2 MP + 2 MP Triple | 200 MP + 50 MP + 50 MP Triple Better Camera Resolution |
| Front Camera | 5 MP | 50 MP Better Front Camera Resolution |
| Thickness | 8.9 mm | 8 mm Slimmer |
| Battery | 5000 mAh | 6040 mAh Bigger Battery |
| Unique Features | No No 3.5mm Audio Jack No No Memory Card Support No No | 5G Fast Charging No Water Resistant NFC No Wireless Charging IR Blaster |
General
| Country of Origin | India | |
| Model | RMX3201, C21 | X300 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano-SIM + Nano-SIM + eSIM (max 2 at a time |
| Device Type | Smartphone | Smartphone |
| Release Date | April 8, 2021 | December 02, 2025 |
Design
| Dimensions | 76.4 x 165.2 x 8.9 mm | 71.9 x 150.6 x 8 mm |
| Weight | 190 g | 190 g |
| Bezel less | Yes | |
| Colors | Black, Blue, Red, Purple, Pink |
Display
| Type | Color IPS LCD Screen (16.7M) | Color AMOLED Screen (1B Colors) |
| Touch | Yes, 120 Hz Touch Sampling Rate | Yes |
| Size | 6.5 inches, 1600 x 720 pixels, 60 Hz | 6.31 inches, 1216 x 2640 pixels, 120 Hz |
| Aspect Ratio | 20:09 | 20:9 |
| PPI | ~ 269 PPI | ~ 484 PPI |
| Screen to Body Ratio | ~ 89.5% | ~ 86.7% |
| Features | 120 Hz Touch , Sunlight Screen Support, COG Sealing Process, WideVine L3 | 2160Hz PWM, HDR10+ |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
Memory
| RAM | 3 GB | 12 GB |
| Expandable RAM | Upto 12 GB Extra Virtual RAM | |
| Storage | 32 GB | 256 GB |
| Storage Type | UFS 4 | |
| Card Slot | Yes, upto 256 GB | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v5.4, A2DP, LE, aptX HD |
| USB | Yes, microUSB | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | Yes |
Extra
| GPS | Yes | Yes, with GPS, BeiDou, GLONASS, Galileo, QZSS, NavIC, A-GPS, Cellular Positioning, Wi-Fi Positioning |
| Fingerprint Sensor | Yes, Rear | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | No |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | 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 | 200 MP ƒ/1.7 (Wide Angle) 1/1.4", 0.56µm, PDAF, OIS 50 MP ƒ/2.6 (Telephoto) 70mm (periscope telephoto), 1/1.95", PDAF, OIS, 3x optical zoom 50 MP ƒ/2 (Ultra Wide) 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF |
| Camera Sensor | CMOS Sensor | |
| OIS | Yes | |
| 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 | Laser AF, Zeiss optics, Zeiss T lens Coating, Panorama, HDR, 3D LUT import |
| Video Recording | 720p, 720P | 4K, 1080p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP | 50 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 720p | 4K, 1080p |
Technical
| OS | Android v10, upgradable to v11 | Android v16 |
| Custom UI | OriginOS 6 | |
| Chipset | MediaTek Helio G35 | Mediatek Dimensity 9500 |
| CPU | 2.3 GHz, Octa Core Processor | 4.21 GHz, Octa Core Processor |
| Core Details | Arm Cortex-A53 | |
| GPU | IMG GE8320 | Arm G1-Ultra |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | WAV, MP3, MP2, MIDI, Vorbis, APE, FLAC |
| Video | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | MP4, 3GP, AVI, Video Recording: MP4 |
| FM Radio | No | No |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6040 mAh, Li-ion Battery |
| Fast Charging | Yes, 90W | |
| Wireless Charging | Yes, 40W | |
| Reverse Charging | Yes | Yes |
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