Xiaomi Redmi Note 15 5G vs Vivo Y21 5G (6GB RAM + 128GB)
Quick Comparison
Xiaomi Redmi Note 15 5G has better RAM than Vivo Y21 5G (6GB RAM + 128GB). In terms of display resolution, Xiaomi Redmi Note 15 5G has better resolution of 2392 x 1080 than Vivo Y21 5G (6GB RAM + 128GB) which has resolution of 1600 x 720. Both have the same amount of internal memory.
| Name | Xiaomi Redmi Note 15 5G | Vivo Y21 5G (6GB RAM + 128GB) |
| RAM | 8 GB | 6 GB |
|---|---|---|
| Display | 6.77 in | 6.74 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5520 mAh | 6500 mAh |
| Camera | 108 MP + 8 MP Dual | 50 MP + 0.08 MP Dual |
| Price | Rs. 24499 | Rs. 20999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is December 18, 2025. The cost of Xiaomi Redmi Note 15 5G is Rs. 24499. The launch Date of the second phone is March 26, 2026. The cost of Vivo Y21 5G (6GB RAM + 128GB) is Rs. 20999.
Display comparison
Vivo Y21 5G (6GB RAM + 128GB) has screen size of 6.74 inches which falls short to Xiaomi Redmi Note 15 5G's 6.77 inch screen. Xiaomi Redmi Note 15 5G has AMOLED Screen type where as Vivo Y21 5G (6GB RAM + 128GB) has IPS Screen type. Xiaomi's phone has display density of 388 PPI & Vivo's phone has only 260 PPI display density. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 89.7% than Vivo's phone ~ 85%. Xiaomi Redmi Note 15 5G has 20.5:9 aspect ratio where as Vivo Y21 5G (6GB RAM + 128GB) has 20:9 aspect ratio.
Memory comparison
Xiaomi Redmi Note 15 5G's larger 8 GB RAM is better for playing games and all with respect to Vivo Y21 5G (6GB RAM + 128GB)'s lower 6 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
Xiaomi Redmi Note 15 5G's 108 MP + 8 MP Dual Rear Camera outshines Vivo Y21 5G (6GB RAM + 128GB)'s 50 MP + 0.08 MP Dual Rear Camera in terms of resolution. Xiaomi Redmi Note 15 5G will be better choice if you're looking to click lot of selfies as it has better 20 MP Front Camera in comparison to Vivo Y21 5G (6GB RAM + 128GB)'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 Note 15 5G | Vivo Y21 5G (6GB RAM + 128GB) |
| General | ||
| Country of Origin | India | India |
| Model | 25096RA9BG, 25098RA98G | Y21 5G |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | December 18, 2025 | March 26, 2026 |
| In The Box | REDMI Note 15 5G / USB Type-C Cable / SIM Eject Tool/ Protective Case / Quick Start Guide / Warranty Card | |
| Design | ||
| Dimensions | 75.4 x 164 x 7.35 mm | 77.1 x 167.4 x 8.4 mm |
| Weight | 178 g | 209 g |
| Colors | Black, Glacier Blue, Mist Purple | Champagne Gold, Midnight Blue |
| Display | ||
| Type | Color AMOLED Screen (68B) | Color IPS Screen |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.77 inches, 1080 x 2392 pixels, 120 Hz | 6.74 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 388 PPI | ~ 260 PPI |
| Screen to Body Ratio | ~ 89.7% | ~ 85% |
| Glass Type | Scratch/drop-resistant glass, Mohs level 5 | |
| Brightness | 3200nits peak brightness, 800nits (typ) | 1200 nits Peak Brightness |
| Features | Contrast Ratio: 8,000,000:1, DCI- P3 wide Color Gamut, Sunlight Display, Reading Mode, 3840Hz PWM Dimming | 16,000-level Brightness Adjustment, TÜV Rheinland Low Blue Light, (Hardware Solution) Certified, TUV Rheinland Circadian Friendly Certified, TÜV Rheinland Flicker Free Certified | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 8 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 6 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | eMMC 5.1 |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | Yes |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G NSA:n1|n3|n40|n78 5G SA: n1|n3|n5|n8|n28|n40|n78 | n1/n3/n5/n8/n28B/n38/n40/n77/n78 |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 2.4 GHz / 5 GHz | |
| Bluetooth | Yes, v5.3, A2DP, LE | Yes |
| USB | Yes, USB-C v2.0 | 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 | Yes | Yes |
| Extra | ||
| GPS | GPS: L1 | GLONASS: G1 | BDS: B1I + B1C | Galileo: E1 | Yes, with A-GPS, GLONASS, GALILEO, BDS, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Virtual proximity sensor | Ambient light sensor | Accelerometer | Electronic compass | IR blaster | Gyroscope | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | Yes |
| AI Features | Gemini Live, Circle to Search | AI Creation, AI Photo Enhance, AI Documents, AI Screen Translation, Circle to Search |
| Water Resistance | Yes, 1.7 m | Yes |
| IP Rating | IP65 + IP66 | IP65 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.7 (Wide Angle) 0.64um, 9 in 1 1.92um 8 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 20 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 | Xiaomi HyperOS 2 | OriginOS 6 |
| Chipset | Qualcomm Snapdragon 6 Gen3 | Mediatek Dimensity 6300 |
| CPU | 2.4 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 2xCortex-A76@2.2 GHz & 6x Cortex-A55@2.0 GHz | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz |
| GPU | Adreno 710 | Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AMR, FLAC, APE | Yes |
| Video | MP4, M4V, MKV, XVID | Yes |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Audio Features | Dual Ultra-Linear Speakers, Misound tuning and Dolby Atmos | |
| Audio Jack Type | USB Type-C | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5520 mAh | 6500 mAh, Li-ion Battery |
| Fast Charging | Yes, 45W Fast Charging | Yes, 44W Fast Charging |
| Reverse Charging | Yes, 18W | Yes |