Realme 15x 5G (8GB RAM + 256GB) vs Vivo Y51A 2021
Here you can compare Realme 15x 5G (8GB RAM + 256GB) and Vivo Y51A 2021. Comparing Realme 15x 5G (8GB RAM + 256GB) vs Vivo Y51A 2021 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme 15x 5G (8GB RAM + 256GB) stands against Vivo Y51A 2021 and which one should you buy The current lowest price found for Realme 15x 5G (8GB RAM + 256GB) is ₹27,999 and for Vivo Y51A 2021 is ₹15,990. The details of both of these products were last updated on Sep 12, 2026.
| Specification | Realme 15x 5G (8GB RAM + 256GB) | Vivo Y51A 2021 |
|---|---|---|
| Battery | 7000 mAh | 5000 mAh, Li-Po Battery |
| CPU | 2.4 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| OS | Android v15 | Android v11 |
| RAM | 8 GB | 8 GB |
| Rear Camera | 50 MP (Wide Angle) Resolution: 4096x3072, Equivalent Focal Length: 28mm, FOV: 76°, Lens: 5P, Sensor: 1/2.93” 2 MP (Depth Sensor) | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro |
| Price | ₹27,999 | ₹15,990 |
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Overview
| Specs Score | 62 / 100 Better Specs | 52 / 100 |
| Display Resolution | 720 x 1570 pixels | 1080 x 2408 pixels Better Resolution |
| Screen To Body Ratio | ~ 90.4% Less Bezels | ~ 82.2% |
| Storage | 256 GB More Storage | 128 GB |
| CPU Clock Speed | 2.4 GHz Faster Clock Speed | 2 GHz |
| Front Camera | 50 MP Better Front Camera Resolution | 16 MP |
| Weight | 212 g | 188 g Lighter |
| Battery | 7000 mAh Bigger Battery | 5000 mAh |
| Unique Features | 5G No No Water Resistant Reverse Charging | No 3.5mm Audio Jack FM Radio No No |
General
| Model | Y51A 2021 | |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | October 01, 2025 | |
| In The Box | 1 realme 15x 5G, 1 USB Type-C Cable, 1 80W Adapter, 1 Protect Case, 1 SIM Card Needle, 1 Screen Protect Film, 1 Quick Guide |
Design
| Dimensions | 77.93 x 166.07 x 8.28 mm | 75.3 x 163.9 x 8.4 mm |
| Weight | 212 g | 188 g |
| Bezel less | No | |
| Colors | Aqua Blue, Marine Blue, Maroon Red |
Display
| Type | Color IPS Screen (16M Colors) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes, 180 Hz Touch Sampling Rate | Yes |
| Size | 6.81 inches, 720 x 1570 pixels, 144 Hz | 6.58 inches, 1080 x 2408 pixels |
| Aspect Ratio | 20:9 | 21:9 |
| PPI | ~ 394 PPI | ~ 415 PPI |
| Screen to Body Ratio | ~ 90.4% | ~ 82.2% |
| Brightness | HBM 1200nit | |
| Features | Contrast Ratio: Typical 1500: 1; minimum 1200: 1 | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
Memory
| RAM | 8 GB | 8 GB |
| Expandable RAM | Upto 10 GB Extra Virtual RAM | |
| Storage | 256 GB | 128 GB |
| Card Slot | Yes, (Hybrid Slot) | Yes, upto 1 TB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | 5G NR: n1/3/5/8/28B/40/41/77/78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Support 802.11 a/b/g/n, Wi-Fi 5(802.11ac) | |
| Bluetooth | Yes, v5.3 | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB on-the-go, USB Charging |
Extra
| GPS | Beidou, GPS, GLONASS, Galileo, QZSS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Proximity sensor, Ambient light sensor, E-compass, Accelerometer | Accelerometer, Ambient Light Sensor, Proximity Sensor, E-compass, Entity Gyroscope |
| 3.5mm Headphone Jack | Yes | |
| AI Features | Al Edit Genie | |
| Water Resistance | Yes | |
| IP Rating | IP69 Pro (IP66/68/69/69K) | |
| Dust Resistant | Yes | |
| Extra Features | Dual-mic Noise Cancellation |
Camera
| Rear Camera | 50 MP (Wide Angle) Resolution: 4096x3072, Equivalent Focal Length: 28mm, FOV: 76°, Lens: 5P, Sensor: 1/2.93” 2 MP (Depth Sensor) | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro |
| Camera Sensor | Sony IMX852 | |
| Auto Focus | Yes | Yes |
| Features | Photo, Portrait Mode, Night, Panorama, Cinematic, TIME-LAPSE, HI-RES, Underwater, PRO, Hypertext, TILT-SHIFT, AI LANDSCAPE Mode, Street Photography Mod, Dual-View Video Mode | Portrait, Photo, Video, Pano, Live Photo, Slo-Mo, Time-Lapse, Pro, DOC, Super Night Mode |
| Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 50 MP ƒ/2.4 (Wide Angle) OV50D40 50MP Resolution: 4080x3072 Equivalent Focal Length: 22mm FOV：87° Aperture：f/2.4 Lens：5P Sensor: 1/2.88" Punch Hole, Screen Flash | 16 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
Technical
| OS | Android v15 | Android v11 |
| Custom UI | Realme UI 6 | |
| Chipset | Mediatek Dimensity 6300 | Qualcomm Snapdragon 662 |
| CPU | 2.4 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | 4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver |
| GPU | Arm Mali-G57 MC2 | Adreno 610 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA | Yes |
| Video | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV | Yes |
| FM Radio | No | Yes |
| Speaker Type | 1115 Ultra-Linear Speaker | |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 60W SUPERVOOC Charge | Yes, 18W Fast Charging |
| Reverse Charging | Yes, 6.5W |
Discuss
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