O2 XDA Star vs Xiaomi Redmi 4

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.

  • Weight

    XDA Star: 30 g lighter

    XDA Star:
    120 g
    Redmi 4:
    150 g
  • Width

    XDA Star: 15 mm narrower

    XDA Star:
    55 mm
    Redmi 4:
    70 mm
  • Screen diagonal

    XDA Star: 2.4 in smaller diagonal

    XDA Star:
    2.6 in
    Redmi 4:
    5 in
  • Chipset

    XDA Star:
    Qualcomm MSM7200
    Redmi 4:
    Qualcomm MSM8940 Snapdragon 435 (28 nm)
  • Depth

    Redmi 4: 7.1 mm thinner

    XDA Star:
    15.8 mm
    Redmi 4:
    8.7 mm
  • Height

    XDA Star: 32.2 mm shorter

    XDA Star:
    107 mm
    Redmi 4:
    139.2 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. XDA Star

    Height:
    107 mm
    Width:
    55 mm
    Depth:
    15.8 mm +7.1 mm versus Redmi 4
  2. 2. Redmi 4

    Height:
    139.2 mm +32.2 mm versus XDA Star
    Width:
    70 mm +15 mm versus XDA Star
    Depth:
    8.7 mm

Weight

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

  1. 1. XDA Star

    120 g

  2. 2. Redmi 4

    150 g

    +30 g versus XDA Star

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. XDA Star

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    20.9 cm²
  2. 2. Redmi 4

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

Redmi 4 has approximately 229.2% more rectangular screen area than XDA Star.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

XDA Star: Original memory entry

96 MB RAM · 128 MB ROM

Redmi 4: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 GB RAM

Practical features

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

1. XDA Star

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD

2. Redmi 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. XDA Star

    1120 mAh

  2. 2. Redmi 4

    4100 mAh

    +2980 mAh versus XDA Star

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. XDA Star2. Redmi 4

Everyday essentials
Everyday essentials — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Dimensions (HxWxD)
  • 107 Х 55 Х 15.8 mm
  • 139.2 Х 70 Х 8.7 mm
Weight
  • 120 g
  • 150 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.6" inch
  • 5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 96 MB RAM
  • 128 MB ROM
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1120 mAh
  • Removable Li-Ion
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 6.0.1 (Marshmallow)
  • upgradable to 7.1.2 (Nougat); MIUI 10
Chipset
  • Qualcomm MSM7200
  • Qualcomm MSM8940 Snapdragon 435 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 20.9 cm2
  • 68.9 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 35.6%
  • 70.7%
PPI /points per inch/
  • 154 PPI
  • 294 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • PDAF
  • f/2.0
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • CIF videocall camera
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Processor CPU
  • 400 MHz ARM 11
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 130
  • Adreno 505
Antutu 7 score * Unknown
  • 42175
GeekBench 4 Single Core * Unknown
  • 837
GeekBench 4 Multi-Core * Unknown
  • 2810
GeekBench 4 RenderScript * Unknown
  • 2630
GeekBench 5 Single Core * Unknown
  • 175
GeekBench 5 Multi-Core * Unknown
  • 995
General specs
General specs — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Release date
  • 2007
  • October
  • 2017
  • May
Colors
  • Black
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 110 EUR
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 5 h
  • Stand by time- Up to 432 h (3G) Talking time- Up to 36 h (3G) Music play - Up to 87 h
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/100 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Radio
  • No
  • FM radio
Others
  • TouchFLO finger swipe navigation -Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for XDA Star, Redmi 4.
SpecificationXDA StarRedmi 4
Dop
  • Pocket Office -Voice memo -MP3/AAC player HTC Nike platform
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Also known as Xiaomi Redmi 4X for China
  • Malaysia
  • Pakistan
  • Indonesia