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Energizer Ultimate U620S vs Oppo A91

Compare recorded specifications, size and practical differences.

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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.

    • Display technology

      OLED versus LCD

      Ultimate U620S:
      LCD
      A91:
      OLED

    • Width

      A91: 2.2 mm narrower

      Ultimate U620S:
      75.5 mm
      A91:
      73.3 mm

    • Screen diagonal

      Ultimate U620S: 0.2 in smaller diagonal

      Ultimate U620S:
      6.2 in
      A91:
      6.4 in

    • Chipset

      Ultimate U620S:
      Mediatek MT6765 Helio P35 (12nm)
      A91:
      Mediatek MT6771V Helio P70 (12nm)

    • Rear camera layout

      Ultimate U620S:
      Triple
      A91:
      Quad

    • Height

      Ultimate U620S: 4.4 mm shorter

      Ultimate U620S:
      155.8 mm
      A91:
      160.2 mm

    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.

    1. 1. Ultimate U620S

      Height:
      155.8 mm
      Width:
      75.5 mm +2.2 mm versus A91
      Depth:
      8.3 mm
      Weight:
      Unknown

    2. 2. A91

      Height:
      160.2 mm +4.4 mm versus Ultimate U620S
      Width:
      73.3 mm
      Depth:
      7.9 mm
      Weight:
      172 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.

    1. 1. Ultimate U620S

      Screen diagonal:
      6.2 in
      Aspect ratio (height:width):
      18.5:9
      Approximate rectangular screen area:
      97.6 cm²

    2. 2. A91

      Screen diagonal:
      6.4 in
      Aspect ratio (height:width):
      20:9
      Approximate rectangular screen area:
      98.9 cm²

    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 for Ultimate U620S, A91, compared at the same storage capacity.
    StorageUltimate U620SA91
    128 GB Unknown 8 GB RAM
    Ultimate U620S: Original memory entry

    64 GB · 512GB 4GB

    Practical features

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

    1. Ultimate U620S

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 128 GB (uses SIM 2 slot)

    2. A91

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 256 GB (dedicated slot)

    Battery capacity

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

    Recorded battery capacity

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

    1. 1. Ultimate U620S

      4000 mAh

    2. 2. A91

      4025 mAh

      +25 mAh versus Ultimate U620S

    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. Ultimate U620S2. A91

    Everyday essentials
    Everyday essentials — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Dimensions (HxWxD)
    • 155.8 Х 75.5 Х 8.3 mm
    • 160.2 Х 73.3 Х 7.9 mm
    Weight
    • 0 g
    • 172 g
    Technology
    • IPS LCD
    • AMOLED
    Screen size
    • 6.2" inch
    • 6.4" inch
    Screen resolution
    • 720 x 1520 px
    • 1080 x 2400 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 64 GB
    • 512GB 4GB
    • 128GB 8GB RAM
    Memory card support
    • microSD
    • up to 128 GB (uses SIM 2 slot)
    • microSD
    • up to 256 GB (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 4000 mAh
    • Removable Li-Po
    • 4025 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 9.0 (Pie)
    • Android 9.0 (Pie); ColorOS 6.1
    Chipset
    • Mediatek MT6765 Helio P35 (12nm)
    • Mediatek MT6771V Helio P70 (12nm)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 97.6 cm2
    • 100.4 cm2
    Screen format
    • 18.5:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 82.9%
    • 85.5%
    PPI /points per inch/
    • 265 PPI
    • 408 PPI
    Screen protection Unknown
    • Corning Gorilla Glass 5
    Camera and Video
    Camera and Video — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Rear camera, main
    • 16 MP
    • Triple
    • 48 MP
    • Quad
    Camera specs
    • 16 MP
    • PDAF -2 MP -VGA
    • depth sensor
    • 48 MP
    • f/1.8
    • 26mm (wide)
    • 1/2.0"
    • 0.8µm
    • PDAF -8 MP
    • f/2.2
    • 13mm (ultrawide)
    • 1/4.0"
    • 1.12µm -2 MP B/W
    • f/2.4
    • 1/5.0"
    • 1.75µm -2 MP
    • 1.75µm
    • depth sensor
    Functions
    • Dual-LED dual-tone flash
    • panorama
    • HDR
    • HDR
    Video
    • 1080p
    • 1080p@30fps
    Front camera, selfie
    • 16 MP
    • Single
    • 16 MP
    • Single
    Specifications
    • 16 MP
    • 16 MP
    • f/2.0
    • 26mm (wide)
    • 1/3.1''
    • 1.0µm
    Performance

    Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

    Performance — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Processor CPU
    • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
    • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
    Graphics processor GPU
    • PowerVR GE8320
    • Mali-G72 MP3
    Antutu 7 score * Unknown
    • 135756
    General specs
    General specs — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Release date
    • 2019
    • January
    • 2019
    • December
    Colors
    • Aurora Red
    • Aurora Blue
    • Dark Blue
    • Red
    • Blue
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
    • 260 EUR
    Body build Unknown
    • Glass front (Gorilla Glass 5)
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    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)
    • 40(2300)
    • 41(2500)
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 4(1700/2100)
    • 5(850)
    • 8(900)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    Speed
    • HSPA
    • LTE-A
    • HSPA 42.2/11.5 Mbps
    • LTE-A
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • hotspot
    • Wi-Fi 802.11 a/b/g/n/ac/ax
    • dual-band
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • GLONASS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    USB
    • 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    • 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    Bluetooth
    • 5.0
    • A2DP
    • LE
    • 4.2
    • A2DP
    • LE
    Music and Audio
    Music and Audio — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Radio
    • FM radio
    • FM radio
    Others
    • Active noise cancellation with dedicated mic
    • 430 nits typ. brightness
    • Active noise cancellation with dedicated mic
    Other features
    Other features — specifications for Ultimate U620S, A91.
    SpecificationUltimate U620SA91
    Dop
    • Sensors Fingerprint (side-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass
    • Sensors Fingerprint (under display
    • optical)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast charging 20W
    • 50% in 30 min -VOOC 3.0

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