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The realme C83 5G and vivo Y21 5G share a Dimensity 6300 chipset, but their clearest specification differences are battery size, screen refresh rate, rear-camera resolution and charging speed. realme lists a 7,000mAh typical battery and a display refresh rate up to 144Hz; vivo lists a 6,500mAh typical battery, a 50MP main camera and charging up to 44W with its standard charger. A dated Amazon India listing snapshot showed the vivo at ₹1,650 more, but the prices may not represent matching memory variants or seller terms.
realme C83 5G vs vivo Y21 5G specifications
The table combines manufacturer specifications with the comparison listing where noted. Manufacturer pages are the better reference for product details; confirm the exact India retail variant before comparing listings.
| Specification | realme C83 5G | vivo Y21 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 6300 (realme India) | Dimensity 6300 (91mobiles comparison listing) |
| RAM and storage options | 4GB or 6GB RAM; 64GB or 128GB storage (realme India) | 4GB, 6GB or 8GB RAM; 128GB storage (91mobiles comparison listing; verify the India retail variant) |
| Display | 6.8-inch HD+ LCD; refresh rate up to 144Hz (realme India) | 6.74-inch HD+ LCD; refresh rate up to 120Hz (vivo Global) |
| Rear cameras | 13MP rear camera (realme India) | 50MP main camera and 0.08MP auxiliary camera (vivo Global) |
| Front camera | 5MP (realme India) | 5MP (vivo India) |
| Battery capacity | 7,000mAh typical (realme India) | 6,500mAh typical; 6,355mAh rated (vivo India) |
| Charging | Maximum 15W (realme India) | Up to 44W FlashCharge with vivo’s standard charger (vivo India) |
| Amazon India price snapshot | ₹19,999 (91mobiles listing accessed October 7, 2026) | ₹21,649 (91mobiles listing accessed October 7, 2026) |
Where the phones differ in everyday use
Camera resolution
The vivo listing specifies a 50MP main rear camera, compared with realme’s 13MP rear camera. That is a difference in stated resolution, not proof that the vivo takes better photos: sensor characteristics, image processing, lens quality and shooting conditions also affect results. The cited specifications do not establish an overall camera-quality winner.
Battery capacity and charging
realme’s stated typical capacity is 7,000mAh, compared with vivo’s 6,500mAh typical capacity and 6,355mAh rated capacity. The realme also has a higher stated maximum charging capacity of 15W? Actually vivo’s is up to 44W. 44W peak charging is higher than realme’s maximum 15W, when using vivo’s standard charger. These capacity and charging figures do not establish which phone lasts longer or how quickly either one charges in ordinary use; no directly comparable runtime or charging test is established here.
#1 Best Overall
- 144Hz High Refresh Rate Large Display – Equipped with a 6.8-inch high-definition LCD screen featuring a 144Hz ultra-smooth refresh rate, delivering fluent visual experience for daily browsing, video watching, gaming and social media. The large screen brings wider field of view and comfortable single-hand operation, effectively reducing screen stutter and eye fatigue during long-time use.
- 6600mAh Giant Battery & 45W Ultra Fast Charge – Built-in 6600mAh high-capacity durable battery supports all-day long-lasting battery life, easily meeting heavy usage needs of gaming, video playback and outdoor travel. 45W ultra-fast charging technology greatly shortens charging time, quickly replenishes power and eliminates low-battery anxiety for daily use.
- Powerful Dimensity 6300 5G Processor – Adopts MediaTek Dimensity 6300 high-performance 5G chip, with optimized operation algorithm and excellent heat dissipation performance. It ensures stable and smooth running of daily office apps, social software and mainstream mobile games, while supporting 5G full-network fast connection for ultra-fast downloading and network surfing.
- 50MP AI Dual Camera System – Comes with a 50MP high-definition rear main camera and 5MP front selfie camera. The intelligent AI imaging algorithm optimizes light, color and details automatically, enabling clear and vivid photos in bright daylight or low-light night environment. It supports portrait mode, panorama and multiple shooting modes to record wonderful moments easily.
- IP64 Waterproof & Dustproof & Practical Design – Features IP64 professional waterproof and dustproof rating, effectively resisting daily splashing water, sweat and fine dust, improving the phone’s durability and extending service life. Unlocked design supports global mainstream network bands, compatible with various operators, perfect for daily communication, travel and outdoor scenarios.
Display size and refresh rate
Both phones are listed with HD+ LCDs. realme’s display is slightly larger at 6.8 inches and supports a stated maximum refresh rate of 144Hz, versus 6.74 inches and up to 120Hz for vivo. Refresh-rate support can depend on the usage scenario, so the maximum figures do not mean every app or screen content runs at those rates.
Shared chipset and memory options
Both are listed with a Dimensity 6300. That shared platform does not establish identical performance in every task, and no cited head-to-head benchmark shows a speed winner. The comparison listing gives the vivo 4GB, 6GB or 8GB RAM with 128GB storage, while realme lists 4GB or 6GB RAM and 64GB or 128GB storage. Check the actual variant attached to the price you see: storage differences can affect value as much as the headline phone price.
Rank #2
- Compatible with Realme C83 5G
- Shockproof Phone Case with Sliding Camera Cover, Compatible with Realme C83 5G .The case comes with a sliding camera cover that prevents lens damage, blocks the phone's camera and protects privacy when not in use. The sliding cover is very easy to slide and does not loosen easily.
- The 360° bracket is mounted on the back and has various adjustable angles (360° horizontal and 110° vertical), bringing you a convenient viewing experience.
- [Support Magnetic Car Mount], Compatible with Realme C83 5G ,There is a built-in metal patch that can easily attach your phone directly to the magnetic car mount (Magnetic car mount not included).
- If you have any questions about our products, please contact us as soon as possible. We will reply promptly.
Price difference in the observed Amazon India listings
91mobiles displayed the realme C83 5G at ₹19,999 and the vivo Y21 5G at ₹21,649 on Amazon India when the comparison page was accessed on October 7, 2026. That makes the vivo ₹1,650 more expensive in that snapshot. These are volatile marketplace listing prices, not stable manufacturer prices or guaranteed current offers. The listing does not establish that the compared prices were for identical RAM and storage configurations or the same seller and delivery conditions. Check the live listing, exact variant, seller and delivery terms before deciding which is better value.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsWhich phone should you choose?
- Consider the realme C83 5G if its listed 7,000mAh typical battery capacity or up-to-144Hz display is more relevant to you, and the specific RAM/storage variant fits your needs.
- Consider the vivo Y21 5G if the listed 50MP main camera or up-to-44W charging with vivo’s standard charger better matches your priorities.
- Compare exact retail configurations before using the observed price gap to judge value. The available listing does not confirm matching RAM/storage variants, and no controlled head-to-head test establishes a performance, camera, battery-runtime or overall winner.
What comes in the box?
vivo India says the Y21 5G package includes a charger, USB cable, case and eject tool, with protective film already applied. The reviewed realme India specification page does not establish the C83 5G box contents, so confirm what is included with the specific retailer and package.
Quick Recap
Rank #3
- Compatible with Realme C83 5G / Compatible with Realme C85 / Compatible with Realme 15x (India)
- The back features a magnetic ring, compatible with various magnetic devices such as wireless chargers, magnetic card holders, and magnetic car mounts.
- This phone case is made of anti-scratch hard rigid PC bumper and shock resistance soft TPU, Military-Grade Protection with Air-Cushion Technology for all corners and the raised TPU bezel design, provide all around double protection of your phone from drops, scratches and bumps.
- The built-in hidden stand enables hands-free operation for video entertainment and video conferencing, offering greater convenience and a comfortable, stable experience.
- Delicate Slide Lens Cover, higher than the raised Camera protects your phone camera from scratches,collision, scuffs and impact. Precise charging cutouts fit volume buttons, side buttons, and device curves for easy access to all buttons, controls, and ports without removing the case.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
