HTC Desire 820 vs HTC One Max

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

    Desire 820: 62 g lighter

    Desire 820:
    155 g
    One Max:
    217 g
  • Width

    Desire 820: 3.8 mm narrower

    Desire 820:
    78.7 mm
    One Max:
    82.5 mm
  • Screen diagonal

    Desire 820: 0.4 in smaller diagonal

    Desire 820:
    5.5 in
    One Max:
    5.9 in
  • Chipset

    Desire 820:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
    One Max:
    Qualcomm APQ8064 Snapdragon 600
  • Depth

    Desire 820: 2.6 mm thinner

    Desire 820:
    7.7 mm
    One Max:
    10.3 mm
  • Height

    Desire 820: 6.8 mm shorter

    Desire 820:
    157.7 mm
    One Max:
    164.5 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. Desire 820

    Height:
    157.7 mm
    Width:
    78.7 mm
    Depth:
    7.7 mm
  2. 2. One Max

    Height:
    164.5 mm +6.8 mm versus Desire 820
    Width:
    82.5 mm +3.8 mm versus Desire 820
    Depth:
    10.3 mm +2.6 mm versus Desire 820

Weight

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

  1. 1. Desire 820

    155 g

  2. 2. One Max

    217 g

    +62 g versus Desire 820

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. Desire 820

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. One Max

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

One Max has approximately 15.1% more rectangular screen area than Desire 820.

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 Desire 820, One Max, compared at the same storage capacity.
StorageDesire 820One Max
16 GB Recorded for all phones 2 GB RAM 2 GB RAM
32 GB Not recorded 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. Desire 820

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

2. One Max

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. Desire 820

    2600 mAh

  2. 2. One Max

    3300 mAh

    +700 mAh versus Desire 820

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. Desire 8202. One Max

Everyday essentials
Everyday essentials — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Dimensions (HxWxD)
  • 157.7 Х 78.7 Х 7.7 mm
  • 164.5 Х 82.5 Х 10.3 mm
Weight
  • 155 g
  • 217 g
Technology
  • LCD
  • Super LCD3
Screen size
  • 5.5" inch
  • 5.9" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2600 mAh
  • Non-removable Li-Po
  • 3300 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 6.1 (Marshmallow); Sense UI 7
  • Android 4.3 (Jelly Bean)
  • upgradable to 5.0 (Lollipop); Sense UI 5.5
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Qualcomm APQ8064 Snapdragon 600
NFC
  • Yes (optional)
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 96.0 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 67.2%
  • 70.7%
PPI /points per inch/
  • 267 PPI
  • 373 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Rear camera, main
  • 13 MP
  • Single
  • 4 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • 28mm (wide)
  • AF
  • 4 MP
  • 1/3''
  • 2µm
  • AF
Functions
  • LED flash
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • 8 MP
  • f/2.3
  • 2.1 MP
Performance

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

Performance — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Processor CPU
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Quad-core 1.7 GHz Krait 300
Graphics processor GPU
  • Adreno 405
  • Adreno 320
Antutu 7 score *
  • 37236
  • 26775
GeekBench 4 Single Core *
  • 573
  • 645
GeekBench 4 Multi-Core *
  • 1447
  • 1903
GeekBench 4 RenderScript *
  • 1914
Unknown
General specs
General specs — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Release date
  • 2014
  • September
  • 2013
  • October
Colors
  • Marble white
  • Tuxedo Grey
  • Santorini White
  • Milky-way Grey
  • Tangerine White
  • Saffron Grey
  • Flamingo Grey
  • Blue Misty
  • Monarch Orange
  • Silver
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 340 EUR
  • 370 EUR
Battery life
  • Stand by time- Up to 424 h (3G) Talking time- Up to 22 h 24 min (3G)
  • Stand by time- Up to 585 h (3G) Talking time- Up to 25 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
SIM card
  • Nano-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 - EMEA
  • Asia HSDPA 850 / 900 / 2100 - Europe TD-SCDMA - Asia -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - Europe LTE band 1(2100)
  • 3(1800)
  • 8(900) - EMEA LTE band 1(2100)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Asia
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 - for Verizon
  • Sprint -3G - HSDPA 900 / 1900 / 2100 - EMEA HSDPA 850 / 900 / 1900 / 2100 - Asia HSDPA 1900 / 2100 - for Sprint -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - EMEA LTE band 1(2100)
  • 3(1800)
  • 8(900) - Asia LTE band 4(1700/2100)
  • 13(700) - Verison
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat3 100/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0 (MHL TV-out)
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 4.0
  • A2DP
  • aptX
Harmful irradiation Unknown
  • SAR - 0.81 W/kg (head) 0.21 W/kg (body)
Music and Audio
Music and Audio — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • BoomSound dual front stereo speakers -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Desire 820, One Max.
SpecificationDesire 820One Max
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Available as HTC One Max Dual SIM for China