Vivo Y51A 2021 vs OPPO K13x 5G (8GB RAM +128GB)
Quick Comparison
Both Vivo Y51A 2021 and OPPO K13x 5G (8GB RAM +128GB) comes with same RAM. In terms of display resolution, Vivo Y51A 2021 has better resolution of 2408 x 1080 than OPPO K13x 5G (8GB RAM +128GB) which has resolution of 1604 x 720. Both have the same amount of internal memory.
| Name | Vivo Y51A 2021 | OPPO K13x 5G (8GB RAM +128GB) |
| RAM | 8 GB | 8 GB |
|---|---|---|
| Display | 6.58 in | 6.67 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5000 mAh | 6000 mAh |
| Camera | 48 MP + 8 MP + 2 MP Triple | 50 MP + 2 MP Dual |
| Price | Rs. 15990 | Rs. 14999 |
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Detailed Comparison
Price And Launch
The cost of Vivo Y51A 2021 is Rs. 15990. The launch Date of the second phone is June 23, 2025. The cost of OPPO K13x 5G (8GB RAM +128GB) is Rs. 14999.
Display comparison
OPPO K13x 5G (8GB RAM +128GB) has larger screen size of 6.67 inches in comparison to Vivo Y51A 2021's 6.58 inch screen. Vivo Y51A 2021 has IPS LCD Screen type where as OPPO K13x 5G (8GB RAM +128GB) has Screen type. Vivo's phone has display density of 415 PPI & OPPO's phone has only 264 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 89.9% than Vivo's phone ~ 82.2%. Vivo Y51A 2021 has 21:9 aspect ratio where as OPPO K13x 5G (8GB RAM +128GB) has 20:9 aspect ratio.
Memory comparison
Both phones come with 8 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
OPPO K13x 5G (8GB RAM +128GB)'s 50 MP + 2 MP Dual Rear Camera outshines Vivo Y51A 2021's 48 MP + 8 MP + 2 MP Triple Rear Camera in terms of resolution. Vivo Y51A 2021 will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to OPPO K13x 5G (8GB RAM +128GB)'s 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
Related Comparisons
Full Comparison
| Name | Vivo Y51A 2021 | OPPO K13x 5G (8GB RAM +128GB) |
| General | ||
| Country of Origin | India | |
| Model | Y51A 2021 | K13x |
| 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 |
| Release Date | June 23, 2025 | |
| In The Box | Handset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case | |
| Design | ||
| Dimensions | 75.3 x 163.9 x 8.4 mm | 76.2 x 165.7 x 7.9 mm |
| Weight | 188 g | 194 g |
| Colors | Midnight Violet | |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color HD+ LCD (16.7 Million) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.58 inches, 1080 x 2408 pixels | 6.67 inches, 720 x 1604 pixels, 120 Hz |
| Aspect Ratio | 21:9 | 20:9 |
| PPI | ~ 415 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 82.2% | ~ 89.9% |
| Brightness | Brightness: 850nit (Normal), 1000nit (HBM) | |
| Features | 10 Touch Points, Contrast Ratio: 1500:1 (Typical), Color Saturation: 83% NTSC, Color Gamut: 88% DCI-P3 (Vivid Mode), 100% sRGB (Natural Mode), Supports Dark Mode, DC Dimming, Supports Eye Comfort, Supports Sunlight Screen | |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS | |
| Card Slot | Yes, upto 1 TB | Yes, upto 2 TB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n8/n28B/n40/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | WiFi 5 (802.11 ac), 802.11 b/g/a/n, WLAN 2.4 GHz, WLAN 5 GHz, Dual Band (WiFi 2.4 GHz, WiFi 5 GHz) | |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.4, SBC, AAC, aptX, aptX HD, and LDAC |
| 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 |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, BEIDOU, GPS, GLONASS, GALILEO, QZSS, AGPS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Ambient Light Sensor, Proximity Sensor, E-compass, Entity Gyroscope | Proximity Sensor, Ambient Light Sensor, E-Compass, Accelerometer |
| 3.5mm Headphone Jack | Yes | Yes |
| AI Features | AI Eraser, AI Clarity Enhancer, AI Smart Image Matting 2.0, AI Reflection Remover, AI Unblur, AI Motion, AI Portrait, AI Reimage, AI Summary, AI Writer | |
| Water Resistance | 1.18 m upto 1.05 min | |
| Splash Resistant | Yes | |
| IP Rating | IP65 | |
| Dust Resistant | Yes | |
| Extra Features | Dual-view Video, Outdoor Mode and Glove Touch, Ultra-Volume Mode, Trinity Engine, Screen Translator, Google Gemini App | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro | 50 MP ƒ/1.8 (Wide Angle) OV50D, 1/2.88 inch Sensor Size, 0.61um Pixel Size, CMOS(4-in-1), FOV: 76 Degree, Equivalent Focal Length: 27mm, 5P Lens, Effective Focal Length: 3.98mm, PDAF 2 MP ƒ/2.4 (Depth Sensor) 1.75um Pixel Size, CMOS, 1/5 inch Sensor Size, FOV: 89 Degree, Equivalent Focal Length: 22mm, 3P Lens, Effective Focal Length: 1.77mm, Fixed Focus) |
| Auto Focus | Yes | Yes |
| Features | Portrait, Photo, Video, Pano, Live Photo, Slo-Mo, Time-Lapse, Pro, DOC, Super Night Mode | Photo, Video, Portrait, Night, Pro, Panorama, Slo-Mo, Dual View Video, Timelapse, Sticker, Hypertext, Hi-Res, Google Lens, Supports Fill Light for Video Shooting |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 1080p @ 60 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2 (Wide Angle) | 8 MP ƒ/2 (Wide Angle) 1.12um Pixel Size, CMOS, 1/4 inch Sensor Size, FOV: 80 Degree, Equivalent Focal Length: 25mm, 4P Lens, Effective Focal Length: 2.66mm, Fixed Focus Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
| Technical | ||
| OS | Android v11 | Android v15 |
| Custom UI | ColorOS 15 | |
| Chipset | Qualcomm Snapdragon 662 | Mediatek Dimensity 6300 |
| CPU | 2 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz |
| GPU | Adreno 610 | ARM Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MP3, AAC, AMR, APE, OGG, FLAC, WAV, MIDI, WMA |
| Video | Yes | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV, Webm, TS |
| FM Radio | Yes | Yes, with FM Recording |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6000 mAh, Li-ion Battery |
| Fast Charging | Yes, 18W Fast Charging | Yes, 45W SUPERVOOCTM Flash Charging |