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- Lava Z81 vs Lava Z91 vs Samsung Galaxy J7 Prime 2
Lava Z81 vs Lava Z91 vs Samsung Galaxy J7 Prime 2 comparison
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| key specs | ||||
| Display | 5.70-inch | 5.70-inch | 5.50-inch | |
| Processor | MediaTek Helio A22 | MediaTek MT6739 | Samsung Exynos 7 Octa 7870 | |
| Front Camera | 13-megapixel | 8-megapixel | 13-megapixel | |
| Rear Camera | 13-megapixel | 13-megapixel | 13-megapixel | |
| RAM | 2GB | 3GB | 3GB | |
| Storage | 32GB | 32GB | 32GB | |
| Battery Capacity | 3000mAh | 3000mAh | 3300mAh | |
| OS | Android 8.1 Oreo | Android 7.1 Nougat | Android 7.0 | |
| Resolution | 720x1440 pixels | 720x1440 pixels | 1080x1920 pixels | |
| general | ||||
| Brand | Lava | Lava | Samsung | |
| Model | Z81 | Z91 | Galaxy J7 Prime 2 | |
| Release date | November 1, 2018 | March 1, 2018 | March 1, 2018 | |
| Launched in India | Yes | - | Yes | |
| Form factor | Touchscreen | Touchscreen | Touchscreen | |
| Dimensions (mm) | 152.20 x 73.00 x 7.90 | - | 151.70 x 75.00 x 8.00 | |
| Weight (g) | 141.60 | - | 170.00 | |
| Battery capacity (mAh) | 3000 | 3000 | 3300 | |
| Colours | Black and Gold | - | Black | |
| display | ||||
| Screen size (inches) | 5.70 | 5.70 | 5.50 | |
| Touchscreen | Yes | Yes | Yes | |
| Resolution | 720x1440 pixels | 720x1440 pixels | 1080x1920 pixels | |
| Protection type | Gorilla Glass | - | - | |
| Aspect ratio | 18:9 | - | 16:9 | |
| Pixels per inch (PPI) | 282 | - | 401 | |
| hardware | ||||
| Processor | 2GHz quad-core | 1.3GHz quad-core | 1.6GHz octa-core | |
| Processor make | MediaTek Helio A22 (MT6761) | MediaTek MT6739 | Samsung Exynos 7 Octa 7870 | |
| RAM | 2GB | 3GB | 3GB | |
| Internal storage | 32GB | 32GB | 32GB | |
| Expandable storage | Yes | Yes | Yes | |
| Expandable storage type | microSD | - | microSD | |
| Expandable storage up to (GB) | 128 | 128 | 256 | |
| camera | ||||
| Rear camera | 13-megapixel | 13-megapixel | 13-megapixel (f/1.9) | |
| Front camera | 13-megapixel | 8-megapixel | 13-megapixel (f/1.9) | |
| Rear flash | - | Yes | LED | |
| Front flash | - | Yes | - | |
| Rear autofocus | - | - | Yes | |
| software | ||||
| Operating system | Android 8.1 Oreo | Android 7.1 Nougat | Android 7.0 | |
| Skin | Star OS 5.0 | Star OS 4.2 | - | |
| connectivity | ||||
| Wi-Fi | Yes | - | Yes | |
| Wi-Fi standards supported | 802.11 b/g/n | - | 802.11 b/g/n | |
| GPS | Yes | - | Yes | |
| Bluetooth | Yes, v 4.10 | - | Yes, v 4.10 | |
| Micro-USB | Yes | - | Yes | |
| FM | Yes | - | Yes | |
| Number of SIMs | 2 | 2 | 2 | |
| Active 4G on both SIM cards | Yes | - | - | |
| Headphones | - | - | 3.5mm | |
| sim 1 | ||||
| SIM Type | Nano-SIM | - | Nano-SIM | |
| GSM/CDMA | GSM | - | GSM | |
| 3G | Yes | - | Yes | |
| 4G/ LTE | Yes | - | Yes | |
| sim 2 | ||||
| SIM Type | Nano-SIM | - | - | |
| GSM/CDMA | GSM | - | - | |
| 3G | Yes | - | - | |
| 4G/ LTE | Yes | - | - | |
| sensors | ||||
| Face unlock | Yes | - | - | |
| Fingerprint sensor | Yes | - | Yes | |
| Compass/ Magnetometer | No | - | - | |
| Proximity sensor | Yes | - | Yes | |
| Accelerometer | Yes | - | Yes | |
| Ambient light sensor | Yes | - | - | |
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