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  2. A1 Alpha vs Lava Z91

A1 Alpha vs Lava Z91

Compare recorded specifications, size and practical differences.

A1 Alpha

A1 Alpha

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    Lava Z91

    Lava Z91

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        Key differences

        Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

        • WidthZ91: 2.9 mm narrowerZ91: 72.9 mm · Alpha: 75.8 mm
        • Screen diagonalZ91: 0.56 in smaller diagonalZ91: 5.7 in · Alpha: 6.26 in
        • Memory variantsAt 32 GB storageAlpha: 2 GB RAM · Z91: 3 GB RAM
        • ChipsetUnisoc SC9863A (28nm) / Mediatek MT6739 (28 nm)Alpha: Unisoc SC9863A (28nm) · Z91: Mediatek MT6739 (28 nm)
        • Rear camera layoutDual / SingleAlpha: Dual · Z91: Single
        • Release year2019 / 2018Alpha: 2019 · Z91: 2018

        Physical size

        Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

        Front
        Alpha: 151.7 × 75.8 mm 1 Z91: 152 × 72.9 mm 2
        Side
        Alpha: 151.7 × 8.1 mm 1 Z91: 152 × 7.7 mm 2
        1. 1. Alpha
          Height
          151.7 mm
          Width
          75.8 mm+2.9 mm versus Z91
          Depth
          8.1 mm
          Weight
          150 g
        2. 2. Z91
          Height
          152 mm
          Width
          72.9 mm
          Depth
          7.7 mm
          Weight
          147 g
        Weight

        Bars start at zero and share a scale within this chart.

        1. 1. Alpha150 g

          +3 g versus Z91

        2. 2. Z91147 g

        Screen size

        Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

        Screen size
        Alpha: 6.26 in, 19:9, About 97.8 cm² rectangular area 1 Z91: 5.7 in, 18:9, About 83.8 cm² rectangular area 2
        1. 1. Alpha 6.26 in · 19:9 About 97.8 cm² rectangular area
        2. 2. Z91 5.7 in · 18:9 About 83.8 cm² rectangular area

        Alpha has approximately 16.7% more rectangular screen area than Z91.

        Memory variants

        Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

        Recorded RAM by storage capacity and phone
        StorageAlphaZ91
        32 GBRecorded for all phones 2 GB RAM 3 GB RAM
        64 GB 3 GB RAM Not recorded

        Practical features

        Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

        1. Alpha

        NFC
        See details Yes (64/3GB model only)
        Headphone jack
        Yes
        Memory card support
        See details microSD · up to 256 GB (uses shared SIM slot)

        2. Z91

        NFC
        Unknown
        Headphone jack
        Yes
        Memory card support
        See details microSD · up to 128 GB (dedicated slot)

        Battery capacity

        Capacity is not battery life. No endurance test is implied.

        Recorded capacity

        Bars start at zero and share a scale within this chart.

        1. 1. Alpha3200 mAh

          +200 mAh versus Z91

        2. 2. Z913000 mAh

        Specifications

        Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

        1. Alpha2. Z91

        Everyday essentials
        Everyday essentials
        SpecificationAlphaZ91
        Dimensions (HxWxD)
        • 151.7 Х 75.8 Х 8.1 mm
        • 152 Х 72.9 Х 7.7 mm
        Weight
        • 150 g
        • 147 g
        Technology
        • IPS LCD
        • IPS LCD
        Screen size
        • 6.26" inch
        • 5.7" inch
        Screen resolution
        • 720 x 1520 px
        • 720 x 1440 px
        Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
        • 32GB 2GB RAM
        • 64GB 3GB RAM
        • 32 GB
        • 3 GB RAM
        Memory card support
        • microSD
        • up to 256 GB (uses shared SIM slot)
        • microSD
        • up to 128 GB (dedicated slot)
        BatteryCapacity is not battery life. No endurance test is implied.
        • 3200 mAh
        • Non-removable Li-Ion
        • 3000 mAh
        • Non-removable Li-Po
        Operating system OS
        • Android 9.0 (Pie)
        • Android 7.1 (Nougat)
        Chipset
        • Unisoc SC9863A (28nm)
        • Mediatek MT6739 (28 nm)
        NFC
        • Yes (64/3GB model only)
        		 Unknown
        Headphone jack
        • Yes
        • Yes
        Display
        Display
        SpecificationAlphaZ91
        Touchscreen
        • capacitive touchscreen
        • capacitive touchscreen
        Display colors
        • 16M
        • 16M
        Screen area
        • 97.8 cm2
        • 83.8 cm2
        Screen format
        • 19:9 (height:width)
        • 18:9 (height:width)
        Screen to body ratio
        • 82.1%
        • 75.7%
        PPI /points per inch/
        • 269 PPI
        • 282 PPI
        Camera and Video
        Camera and Video
        SpecificationAlphaZ91
        Rear camera, main
        • 13 MP
        • Dual
        • 13 MP
        • Single
        Camera specs
        • 13 MP
        • f/2.0
        • AF -2 MP
        • f/2.4
        • depth sensor
        • 13 MP
        • f/2.0
        • 1.12µm
        • AF
        Functions
        • LED flash
        • HDR
        • LED flash
        Video
        • 1080p@30fps
        • 1080p@30fps
        Front camera, selfie
        • 8 MP
        • Single
        • 8 MP
        • Single
        Specifications
        • 8 MP
        • f/2.0
        • 8 MP
        • f/2.2
        Performance
        Performance
        SpecificationAlphaZ91
        Processor CPU
        • Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
        • Quad-core 1.3 GHz Cortex-A53
        Graphics processor GPU
        • IMG8322
        • PowerVR GE8100
        Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
        • 35722
        General specs
        General specs
        SpecificationAlphaZ91
        Release date
        • 2019
        • August
        • 2018
        • March
        Colors
        • Black
        • Green
        • Blue
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 150 EUR
        • 10000 INR
        Communication and Connectivity
        Communication and Connectivity
        SpecificationAlphaZ91
        SIM card
        • Hybrid Dual SIM (Nano-SIM
        • dual stand-by)
        • Dual SIM (Nano-SIM
        • dual stand-by)
        Network
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
        • 3(1800)
        • 5(850)
        • 7(2600)
        • 8(900)
        • 20(800)
        • 38(2600)
        • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
        • 3(1800)
        • 5(850)
        • 40(2300)
        • 41(2500)
        Speed
        • HSPA 42.2/5.76 Mbps
        • LTE Cat4 150/50 Mbps
        • HSPA 42.2/5.76 Mbps
        • LTE Cat4 150/50 Mbps
        GPRS
        • Yes
        • Yes
        Edge
        • Yes
        • Yes
        Wi-Fi
        • Wi-Fi 802.11 b/g/n
        • Wi-Fi Direct
        • hotspot
        • Wi-Fi 802.11 a/b/g/n/ac
        • dual-band
        • WiFi Direct
        • hotspot
        GPS
        • Yes
        • with A-GPS
        • GLONASS
        • Yes
        • with A-GPS
        USB
        • microUSB 2.0
        • USB On-The-Go
        • microUSB 2.0
        • USB On-The-Go
        Bluetooth
        • 4.2
        • A2DP
        • LE
        • 4.0
        • A2DP
        Music and Audio
        Music and Audio
        SpecificationAlphaZ91
        Radio
        • FM radio
        • FM radio
        Others
        • Active noise cancellation with dedicated mic
        		 Unknown
        Other features
        Other features
        SpecificationAlphaZ91
        Dop
        • Sensors Fingerprint (rear-mounted)
        • accelerometer
        • gyro
        • proximity
        • compass
        • Sensors Fingerprint (rear-mounted)
        • accelerometer
        • proximity - For India

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