Both Realme 8 and Vivo Y21 2021 comes with same RAM. In terms of display resolution, Realme 8 has better resolution of 2400 x 1080 than Vivo Y21 2021 which has resolution of 1600 x 720. Realme 8 has more internal memory than Vivo Y21 2021
| Name | Realme 8 | Vivo Y21 2021 |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.4 in | 6.51 in |
| Internal Memory | 128 GB | 64 GB |
| Battery | 5000 mAh | 5000 mAh |
| Camera | 64 MP Quad | 13 MP + 2 MP Dual |
| Price | Rs. 14499 | Rs. 10999 |
The launch Date of the first phone is March 24, 2021. The cost of Realme 8 is Rs. 14499. The launch Date of the second phone is August 20, 2021 . The cost of Vivo Y21 2021 is Rs. 10999.
Vivo Y21 2021 has larger screen size of 6.51 inches in comparison to Realme 8's 6.4 inch screen. Realme 8 has Super AMOLED Screen type where as Vivo Y21 2021 has IPS LCD Screen type. Realme's phone has display density of 411 PPI & Vivo's phone has only 262 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 90.8% than Vivo's phone ~ 89%. Realme 8 has 20:9 aspect ratio where as Vivo Y21 2021 has 20:9 aspect ratio.
Both mobiles come with 4 GB RAM Realme 8 has more Internal Memory (128 GB) than Vivo Y21 2021 (64 GB).
Realme 8's 64 MP Quad Rear Camera outclasses Vivo Y21 2021's 13 MP + 2 MP Dual Rear Camera in terms of resolution. Realme 8 will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Vivo Y21 2021's 8 MP Front Camera.
Both the phones run on Android Operating System Version 11.
| Name | Realme 8 | Vivo Y21 2021 |
| General | ||
| Model | 8 | Y21 2021 |
| 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 | March 24, 2021 | August 20, 2021 |
| Design | ||
| Dimensions | 73.9 x 160.6 x 8 mm | 76 x 164 x 8 mm |
| Weight | 177 g | 182 g |
| Display | ||
| Type | Color Super AMOLED Screen (16.7M) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.4 inches, 1080 x 2400 pixels, 60 Hz | 6.51 inches, 720 x 1600 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 411 PPI | ~ 262 PPI |
| Screen to Body Ratio | ~ 90.8% | ~ 89% |
| Features | COG Sealing Process, Always-on Display | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 4 GB | 4 GB |
| Expandable RAM | Upto 1 GB Extra Virtual RAM | |
| Storage | 128 GB | 64 GB |
| Storage Type | UFS 2.1 | |
| Card Slot | Yes, upto 256 GB | Yes, upto 1 TB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.1, A2DP, LE | Yes, v5.0 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| Extra | ||
| GPS | yes with A-GPS, Beidou, Glonass, Galileo | yes with A-GPS |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope, Magnetic Induction Sensor | Light sensor, Proximity sensor, Accelerometer |
| 3.5mm Headphone Jack | Yes | Yes |
| Camera | ||
| Rear Camera | 64 MP ƒ/1.79 (Wide Angle) 8 MP ƒ/2.25 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Mono | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | Starry Mode, Tilt-shift, Neon Portrait, Dynamic Bokeh, AI Colour Portrait, Super Nightscape, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, Ultra Wide, Ultra Macro, AI Scene Recognition, AI Beauty, Filter, Chroma Boost, Bokeh Effect Control | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 120/30/60 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.45 (Ultra Wide) Punch Hole, Screen Flash | 8 MP ƒ/2 (Main) Screen Flash |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11 | Android v11 |
| Chipset | MediaTek Helio G95 | Mediatek Helio P35 |
| CPU | 2 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55 | 4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53 |
| GPU | Mali-G76 MC4 | PowerVR GE8320 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | Yes |
| Video | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | Yes |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 30W Dart Charging | Yes, 18W Fast Charging |