T-Mobile HD2 vs Xiaomi Redmi 8A Dual

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

    HD2: 31 g lighter

    HD2:
    157 g
    Redmi 8A Dual:
    188 g
  • Width

    HD2: 8.4 mm narrower

    HD2:
    67 mm
    Redmi 8A Dual:
    75.4 mm
  • Screen diagonal

    HD2: 1.92 in smaller diagonal

    HD2:
    4.3 in
    Redmi 8A Dual:
    6.22 in
  • Chipset

    HD2:
    Qualcomm QSD8250 Snapdragon S1
    Redmi 8A Dual:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Rear camera layout

    HD2:
    Single
    Redmi 8A Dual:
    Dual
  • Depth

    Redmi 8A Dual: 1.6 mm thinner

    HD2:
    11 mm
    Redmi 8A Dual:
    9.4 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. HD2

    Height:
    122 mm
    Width:
    67 mm
    Depth:
    11 mm +1.6 mm versus Redmi 8A Dual
  2. 2. Redmi 8A Dual

    Height:
    156.5 mm +34.5 mm versus HD2
    Width:
    75.4 mm +8.4 mm versus HD2
    Depth:
    9.4 mm

Weight

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

  1. 1. HD2

    157 g

  2. 2. Redmi 8A Dual

    188 g

    +31 g versus HD2

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. HD2

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    52.6 cm²
  2. 2. Redmi 8A Dual

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 cm²

Redmi 8A Dual has approximately 83.5% more rectangular screen area than HD2.

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 HD2, Redmi 8A Dual, compared at the same storage capacity.
StorageHD2Redmi 8A Dual
32 GB Unknown 2 / 3 GB RAM Alternative RAM configurations
HD2: Original memory entry

576 MB RAM · 1 GB ROM

Practical features

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

1. HD2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 16 GB included

2. Redmi 8A Dual

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. HD2

    1230 mAh

  2. 2. Redmi 8A Dual

    5000 mAh

    +3770 mAh versus HD2

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. HD22. Redmi 8A Dual

Everyday essentials
Everyday essentials — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Dimensions (HxWxD)
  • 122 Х 67 Х 11 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 157 g
  • 188 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.3" inch
  • 6.22" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 576 MB RAM
  • 1 GB ROM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1230 mAh
  • Removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.5 Professional; Sense UI
  • Android 9.0 (Pie); MIUI 11
Chipset
  • Qualcomm QSD8250 Snapdragon S1
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 52.6 cm2
  • 96.6 cm2
Screen format
  • 5:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 64.4%
  • 81.8%
PPI /points per inch/
  • 217 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 5 MP
  • AF
  • 13 MP
  • f/2.2
  • (wide)
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • Dual-LED flash
  • HDR
Video
  • 480p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Performance

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

Performance — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Processor CPU
  • 1.0 GHz Scorpion
  • Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Graphics processor GPU
  • Adreno 200
  • Adreno 505
GeekBench 4 Single Core * Unknown
  • 864
GeekBench 4 Multi-Core * Unknown
  • 3669
Antutu 8 score * Unknown
  • 95326
General specs
General specs — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Release date
  • 2010
  • January
  • 2020
  • February 11
Colors
  • Black
  • Sky White
  • Sea Blue
  • Midnight Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 EUR
  • 80 EUR
Battery life
  • Stand by time- Up to 480 h Talking time- Up to 6 h
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
SIM card
  • Mini-SIM
  • Dual SIM (Nano-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)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/2 Mbps
  • HSPA
  • LTE-A
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS; NaviPanel
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.1
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • built-in antenna
Others Unknown
  • 400 nits typ. brightness
Other features
Other features — specifications for HD2, Redmi 8A Dual.
SpecificationHD2Redmi 8A Dual
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/eAAC+ player -MP4/WMV/H.264 player -Pocket Office -HTC Peep
  • HTC Footprints -T-mobile services: MobiTV
  • BLOCKBUSTER
  • Barnes & Nobl
  • Gogo Inflight Internet -Transformers & Transformers 2 movies preloaded -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 18W -Power bank/Reverse charging - Splash resistant