Lenovo K8 Plus has better RAM than Vivo Y91i. In terms of display resolution, Lenovo K8 Plus has better resolution of 1920 x 1080 than Vivo Y91i which has resolution of 1520 x 720. Lenovo K8 Plus has more internal memory than Vivo Y91i
| Name | Lenovo K8 Plus | Vivo Y91i |
| RAM | 3 GB | 2 GB |
|---|---|---|
| Display | 5.2 in | 6.22 in |
| Internal Memory | 32 GB | 16 GB |
| Battery | 4000 mAh | 4030 mAh |
| Camera | 13 MP + 5 MP Dual | 13 MP |
| Price | Rs. 5999 | Rs. 8189 |
The launch Date of the first phone is September, 2017. The cost of Lenovo K8 Plus is Rs. 5999. The launch Date of the second phone is March, 2019. The cost of Vivo Y91i is Rs. 8189.
Lenovo K8 Plus has screen size of 5.2 inches which falls short to Vivo Y91i's 6.22 inch screen. Lenovo K8 Plus has IPS Screen type where as Vivo Y91i has IPS LCD Screen type. Lenovo's phone has display density of 424 PPI & Vivo's phone has only 270 PPI display density. Lenovo K8 Plus has 16:9 aspect ratio where as Vivo Y91i has 19:9 aspect ratio.
Lenovo K8 Plus's larger 3 GB RAM is better for playing games and all with respect to Vivo Y91i's lower 2 GB RAM. Lenovo K8 Plus has more Internal Memory (32 GB) than Vivo Y91i (16 GB).
They both have the same 13 MP + 5 MP Dual Rear Camera. Both of them stand equal in terms of Front Camera Resolution as both have 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 7.1.1 and the second one on v8.1 (Oreo) version.
| Name | Lenovo K8 Plus | Vivo Y91i |
| General | ||
| Model | Y91i | |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | September, 2017 | March, 2019 |
| Design | ||
| Dimensions | 73.7 x 147.9 x 9 mm | 75 x 155 x 8.3 mm |
| Weight | 165 g | 163.5 g |
| Display | ||
| Type | Color IPS Screen (16M colors Colors) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 5.2 inches, 1080 x 1920 pixels | 6.22 inches, 720 x 1520 pixels |
| Aspect Ratio | 16:9 | 19:9 |
| PPI | ~ 424 PPI | ~ 270 PPI |
| Screen to Body Ratio | ~ 82.9% | |
| Features | Corning Gorilla Glass 3 Screen Protection | yes with waterdrop notch |
| Notch | Yes, Water Drop Notch | |
| Memory | ||
| RAM | 3 GB | 2 GB |
| Storage | 32 GB | 16 GB |
| Card Slot | Yes, upto 128 GB | Yes, upto 256 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes | Yes, v4.2 |
| USB | Yes, microUSB | Yes, microUSB v2.0 |
| USB Features | USB on-the-go | USB Tethering, USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS Support | Yes |
| Fingerprint Sensor | Yes | No |
| Sensors | Accelerometer, Gyroscope, Compass | Light sensor, Proximity sensor, Accelerometer |
| 3.5mm Headphone Jack | Yes | Yes |
| Camera | ||
| Rear Camera | 13 MP + 5 MP | 13 MP |
| Auto Focus | Yes | Yes |
| Features | Face detection, Geo tagging, Panorama, Touch to focus | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 8 MP Flash | 8 MP |
| Technical | ||
| OS | Android v7.1.1 (Nougat) | Android v8.1 (Oreo) |
| Chipset | Mediatek Helio P25 | Mediatek Helio P22 |
| CPU | 2.5 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| GPU | Mali-T880 MP2 | PowerVR GE8320 |
| Java | No | Yes |
| Browser | Yes, supports HTML | Yes, supports HTML5 |
| Multimedia | ||
| Supports | MMS, Instant Messaging | |
| Yes, with Push Email | Yes | |
| Music | MP3, WAV, eAAC+, FLAC | Yes |
| Video | MP4, H.264 | Yes |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4000 mAh, Li-Po Battery | 4030 mAh, Li-Po Battery |