Xiaomi Redmi 15C 5G (6GB RAM + 128GB) vs Vivo Y21 5G
Quick Comparison
Xiaomi Redmi 15C 5G (6GB RAM + 128GB) has better RAM than Vivo Y21 5G. Both have the same amount of internal memory.
| Name | Xiaomi Redmi 15C 5G (6GB RAM + 128GB) | Vivo Y21 5G |
| RAM | 6 GB | 4 GB |
|---|---|---|
| Display | 6.9 in | 6.74 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 6000 mAh | 6500 mAh |
| Camera | 50 MP + Auxiliary lens Dual | 50 MP + 0.08 MP Dual |
| Price | Rs. 18240 | Rs. 18991 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is December 03, 2025. The cost of Xiaomi Redmi 15C 5G (6GB RAM + 128GB) is Rs. 18240. The launch Date of the second phone is March 26, 2026. The cost of Vivo Y21 5G is Rs. 18991.
Display comparison
Vivo Y21 5G has screen size of 6.74 inches which falls short to Xiaomi Redmi 15C 5G (6GB RAM + 128GB)'s 6.9 inch screen. Xiaomi Redmi 15C 5G (6GB RAM + 128GB) has IPS LCD Screen type where as Vivo Y21 5G has IPS Screen type. Vivo's phone has display density of 260 PPI & Xiaomi's phone has only 254 PPI display density. In terms of screen to body ratio, Vivo's phone has better screen to body ratio of ~ 85% than Xiaomi's phone ~ 82.1%. Xiaomi Redmi 15C 5G (6GB RAM + 128GB) has 20.6:9 aspect ratio where as Vivo Y21 5G has 20:9 aspect ratio.
Memory comparison
Xiaomi Redmi 15C 5G (6GB RAM + 128GB)'s larger 6 GB RAM is better for playing games and all with respect to Vivo Y21 5G's lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
They both have the same 50 MP + Auxiliary lens Dual Rear Camera. Xiaomi Redmi 15C 5G (6GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Vivo Y21 5G's 5 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 16 version.
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Full Comparison
| Name | Xiaomi Redmi 15C 5G (6GB RAM + 128GB) | Vivo Y21 5G |
| General | ||
| Country of Origin | India | |
| Model | 15C 5G | Y21 5G |
| 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 |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | December 03, 2025 | March 26, 2026 |
| In The Box | Dark Purple, Moonlight Blue, Midnight Black | |
| Design | ||
| Dimensions | 79.47 x 171.56 x 7.99 mm | 77.1 x 167.4 x 8.4 mm |
| Weight | 211 g | 209 g |
| Colors | Champagne Gold, Midnight Blue | |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color IPS Screen |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 720 x 1600 pixels, 120 Hz | 6.74 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 20.6:9 | 20:9 |
| PPI | ~ 254 PPI | ~ 260 PPI |
| Screen to Body Ratio | ~ 82.1% | ~ 85% |
| Brightness | 660 nits (typ), 810 nits HBM | 1200 nits Peak Brightness |
| Color Gamut | 83% NTSC | |
| Features | TÜV Rheinland Low Blue Light (Software Solution) Certified, TÜV Rheinland Circadian Friendly Certified, TÜV Rheinland Flicker Free Certified, Contrast ratio: 1200:1, | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 6 GB | 4 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | Upto 4 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | eMMC 5.1 |
| Card Slot | Yes, upto 1 TB | Yes |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | n1/n3/n5/n8/n28B/n38/n40/n77/n78 |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi: 2.4GHz | 5GHz | 2.4 GHz / 5 GHz |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes |
| USB | Yes | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | No | Yes |
| Performance | ||
| Geekbench Score | 1,942 (Multi Core) (v6) 735 (Single Core) 1,420 (OpenCL) 1,405 (Vulkan) | |
| Extra | ||
| GPS | GPS | Glonass | Galileo | Beidou | Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Virtual Proximity Sensor, Ambient Light Sensor Accelerometer, Electronic compass | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| AI Features | Gemini, Circle to Search | AI Creation, AI Photo Enhance, AI Documents, AI Screen Translation, Circle to Search |
| Water Resistance | Yes | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | IP65 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) (Auxiliary lens) | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP |
| Auto Focus | Yes | Yes |
| Features | HDR Mode, Night Mode, Auto Night Mode, Portrait Mode, Time-lapse | |
| Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash | 5 MP ƒ/2.2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v15 | Android v16 |
| Custom UI | HyperOS 2 | OriginOS 6 |
| Chipset | Mediatek Dimensity 6300 | Mediatek Dimensity 6300 |
| CPU | 2.4 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz |
| GPU | Arm Mali-G57 MC2 | Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6000 mAh, Li-Po Battery | 6500 mAh, Li-ion Battery |
| Fast Charging | Yes, 33W | Yes, 44W Fast Charging |
| Reverse Charging | Yes | Yes |