T-Mobile HD2 vs Xiaomi Redmi S2

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: 13 g lighter

    HD2:
    157 g
    Redmi S2:
    170 g
  • Width

    HD2: 10.3 mm narrower

    HD2:
    67 mm
    Redmi S2:
    77.3 mm
  • Screen diagonal

    HD2: 1.69 in smaller diagonal

    HD2:
    4.3 in
    Redmi S2:
    5.99 in
  • Chipset

    HD2:
    Qualcomm QSD8250 Snapdragon S1
    Redmi S2:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Rear camera layout

    HD2:
    Single
    Redmi S2:
    Dual
  • Depth

    Redmi S2: 2.9 mm thinner

    HD2:
    11 mm
    Redmi S2:
    8.1 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 +2.9 mm versus Redmi S2
  2. 2. Redmi S2

    Height:
    160.7 mm +38.7 mm versus HD2
    Width:
    77.3 mm +10.3 mm versus HD2
    Depth:
    8.1 mm

Weight

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

  1. 1. HD2

    157 g

  2. 2. Redmi S2

    170 g

    +13 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 S2

    Screen diagonal:
    5.99 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.6 cm²

Redmi S2 has approximately 75.9% 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.

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

HD2: Original memory entry

576 MB RAM · 1 GB ROM

Redmi S2: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 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. HD2

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

2. Redmi S2

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. HD2

    1230 mAh

  2. 2. Redmi S2

    3080 mAh

    +1850 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 S2

Everyday essentials
Everyday essentials — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Dimensions (HxWxD)
  • 122 Х 67 Х 11 mm
  • 160.7 Х 77.3 Х 8.1 mm
Weight
  • 157 g
  • 170 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.3" inch
  • 5.99" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1440 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
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1230 mAh
  • Removable Li-Ion
  • 3080 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.5 Professional; Sense UI
  • Android 8.1 (Oreo); MIUI 10
Chipset
  • Qualcomm QSD8250 Snapdragon S1
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 52.6 cm2
  • 92.6 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 64.4%
  • 74.5%
PPI /points per inch/
  • 217 PPI
  • 269 PPI
Camera and Video
Camera and Video — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Rear camera, main
  • 5 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 5 MP
  • AF
  • 12 MP
  • f/2.2
  • 1.25µm
  • PDAF -5 MP
  • depth sensor
Functions
  • Dual-LED flash
  • HDR
  • LED flash
Video
  • 480p@30fps
  • 1080p@30fps (gyro-EIS)
Front camera, selfie
  • 0 MP,
  • 16 MP
  • Single
Specifications Unknown
  • 16 MP
Performance

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

Performance — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Processor CPU
  • 1.0 GHz Scorpion
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 200
  • Adreno 506
Antutu 7 score * Unknown
  • 78926
GeekBench 4 Single Core * Unknown
  • 835
GeekBench 4 Multi-Core * Unknown
  • 4087
GeekBench 5 Single Core * Unknown
  • 168
GeekBench 5 Multi-Core * Unknown
  • 985
General specs
General specs — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Release date
  • 2010
  • January
  • 2018
  • May
Colors
  • Black
  • Gray
  • Gold
  • Rose Gold
  • Mesmerising Blue
  • Stunning Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 EUR
  • 150 EUR
Battery life
  • Stand by time- Up to 480 h Talking time- Up to 6 h
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
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 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) - Global LTE band 1(2100)
  • 40(2300)
  • 41(2500) - India LTE band 1(2100)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China
Speed
  • HSPA 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS; NaviPanel
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for HD2, Redmi S2.
SpecificationHD2Redmi S2
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 Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Charging 5V/2A 10W - Also known as Xiaomi Redmi Y2 in India