Energizer Ultimate U620S vs Xiaomi Redmi 4a

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Width

    Redmi 4a: 5.1 mm narrower

    Ultimate U620S:
    75.5 mm
    Redmi 4a:
    70.4 mm
  • Screen diagonal

    Redmi 4a: 1.2 in smaller diagonal

    Ultimate U620S:
    6.2 in
    Redmi 4a:
    5 in
  • Chipset

    Ultimate U620S:
    Mediatek MT6765 Helio P35 (12nm)
    Redmi 4a:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Rear camera layout

    Ultimate U620S:
    Triple
    Redmi 4a:
    Single
  • Height

    Redmi 4a: 15.9 mm shorter

    Ultimate U620S:
    155.8 mm
    Redmi 4a:
    139.9 mm
  • Release year

    Ultimate U620S:
    2019
    Redmi 4a:
    2016

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 +15.9 mm versus Redmi 4a
    Width:
    75.5 mm +5.1 mm versus Redmi 4a
    Depth:
    8.3 mm
    Weight:
    Unknown
  2. 2. Redmi 4a

    Height:
    139.9 mm
    Width:
    70.4 mm
    Depth:
    8.5 mm
    Weight:
    131.5 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. Redmi 4a

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

Ultimate U620S has approximately 41.6% more rectangular screen area than Redmi 4a.

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, Redmi 4a, compared at the same storage capacity.
StorageUltimate U620SRedmi 4a
16 GB Unknown 2 GB RAM
32 GB Unknown 2 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. Redmi 4a

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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

    +880 mAh versus Redmi 4a

  2. 2. Redmi 4a

    3120 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. Ultimate U620S2. Redmi 4a

Everyday essentials
Everyday essentials — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Dimensions (HxWxD)
  • 155.8 Х 75.5 Х 8.3 mm
  • 139.9 Х 70.4 Х 8.5 mm
Weight
  • 0 g
  • 131.5 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.2" inch
  • 5" inch
Screen resolution
  • 720 x 1520 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 128 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Removable Li-Po
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Android 6.0.1 (Marshmallow); MIUI 10
Chipset
  • Mediatek MT6765 Helio P35 (12nm)
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.6 cm2
  • 68.0 cm2
Screen format
  • 18.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.9%
  • 69.0%
PPI /points per inch/
  • 265 PPI
  • 296 PPI
Camera and Video
Camera and Video — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Rear camera, main
  • 16 MP
  • Triple
  • 13 MP
  • Single
Camera specs
  • 16 MP
  • PDAF -2 MP -VGA
  • depth sensor
  • 13 MP
  • AF
  • f/2.2
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 16 MP
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 308
Antutu 7 score * Unknown
  • 43152
GeekBench 4 Single Core * Unknown
  • 664
GeekBench 4 Multi-Core * Unknown
  • 1740
GeekBench 4 RenderScript * Unknown
  • 1350
GeekBench 5 Single Core * Unknown
  • 123
GeekBench 5 Multi-Core * Unknown
  • 396
General specs
General specs — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Release date
  • 2019
  • January
  • 2016
  • November
Colors
  • Aurora Red
  • Aurora Blue
  • Gold
  • Rose Gold
  • Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 110 EUR
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM/ Micro-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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 20(800)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA
  • LTE-A
  • HSPA
  • LTE
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 b/g/n
  • 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
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Ultimate U620S, Redmi 4a.
SpecificationUltimate U620SRedmi 4a
Dop
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • Infrared port