On this page we compare specs Lava Z91 Quad-core 1.3 GHz Cortex-A53 with Oppo A3s Octa-core 1.8 GHz Cortex-A53, we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
Hardware and OS | Lava Z91 | Oppo A3s |
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Operating system | Android 7.1 (Nougat) | Android 8.1 (Oreo); ColorOS 5.1 |
Processor | Quad-core 1.3 GHz Cortex-A53 | Octa-core 1.8 GHz Cortex-A53 |
Chipset | Mediatek MT6739 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
GPU | PowerVR GE8100 | Adreno 506 |
Internal memory | 32 GB, 3 GB RAM | 16 GB, 2 GB RAM |
External memory | microSD, up to 128 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
Display | Lava Z91 | Oppo A3s |
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Type | IPS LCD | IPS LCD |
Size | 5.7" inc | 6.2" inc |
Resolution | 720 x 1440 px | 720 x 1520 px |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 75.7% | 81.2% |
Display area | 83.8 cm2 | 95.9 cm2 |
Display aspect ratio | 18:9 (height:width) | 19:9 (height:width) |
Pixel Density | 282 PPI | 271 PPI |
Colors | 16M | 16M |
Connectivity | Lava Z91 | Oppo A3s |
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2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 |
4G Network | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) | LTE |
Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
SIM card | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | 4.0, A2DP | 4.2, A2DP, LE |
Edge | Yes | Yes |
GPRS | Yes | Yes |
GPS | Yes, with A-GPS | Yes, with A-GPS |
Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
USB | microUSB 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go |
Camera | Lava Z91 | Oppo A3s |
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Main camera | 13 MP, Single | 13 MP, Dual |
Specs | 13 MP, f/2.0, 1.12µm, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
Features | LED flash | LED flash, HDR, panorama |
Video | 1080p@30fps | 1080p@30fps |
Selfie camera | 8 MP, Single | 8 MP, Single |
Multimedia | Lava Z91 | Oppo A3s |
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3.5 mm Jack | Yes | Yes |
Radio | FM radio | FM radio |
Design | Lava Z91 | Oppo A3s |
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Colors | Blue | Red, Dark Purple |
Dimensions | 152 x 72.9 x 7.7 mm | 156.2 x 75.6 x 8.2 mm |
Weight | 147 g | 168 g |
Battery | Lava Z91 | Oppo A3s |
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Battery capacity | 3000 mAh, Non-removable Li-Po | 4230 mAh, Non-removable Li-Ion |
Other | Lava Z91 | Oppo A3s |
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Release date | 2018, March | 2018, July |
Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Accelerometer, proximity, compass |