Palm Treo Pro vs ZTE V821

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.

  • Weight

    V821: 13 g lighter

    Treo Pro:
    133 g
    V821:
    120 g
  • Width

    V821: 3.5 mm narrower

    Treo Pro:
    60 mm
    V821:
    56.5 mm
  • Chipset

    Treo Pro:
    Qualcomm MSM7201
    V821:
    Mediatek MT6516
  • Depth

    V821: 1.6 mm thinner

    Treo Pro:
    13.4 mm
    V821:
    11.8 mm
  • Height

    Treo Pro: 2 mm shorter

    Treo Pro:
    114 mm
    V821:
    116 mm
  • Release year

    Treo Pro:
    2008
    V821:
    2011

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. Treo Pro

    Height:
    114 mm
    Width:
    60 mm +3.5 mm versus V821
    Depth:
    13.4 mm +1.6 mm versus V821
  2. 2. V821

    Height:
    116 mm +2 mm versus Treo Pro
    Width:
    56.5 mm
    Depth:
    11.8 mm

Weight

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

  1. 1. Treo Pro

    133 g

    +13 g versus V821

  2. 2. V821

    120 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Treo Pro

    Screen diagonal:
    2.5 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    20.2 cm²
  2. 2. V821

    V821: Screen geometry unavailable or conflicting.

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.

Treo Pro: Original memory entry

100 MB · 128 MB RAM

V821: Original memory entry

256 MB

Practical features

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

1. Treo Pro

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 8 GB (dedicated slot)

2. V821

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

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Treo Pro2. V821

Everyday essentials
Everyday essentials — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Dimensions (HxWxD)
  • 114 Х 60 Х 13.4 mm
  • 116 Х 56.5 Х 11.8 mm
Weight
  • 133 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 2.5" inch
  • 0" inch
Screen resolution
  • 320 x 320 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 100 MB
  • 128 MB RAM
  • 256 MB
Memory card support
  • microSD
  • up to 8 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 2.2 (Froyo)
Chipset
  • Qualcomm MSM7201
  • Mediatek MT6516
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 20.2 cm2
Unknown
Screen format
  • 1:1 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 29.5%
Unknown
PPI /points per inch/
  • 181 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
  • AF
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Processor CPU
  • 528 MHz ARM 11
  • 416 MHz
Graphics processor GPU
  • Adreno 130
Unknown
General specs
General specs — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Release date
  • 2008
  • August
  • 2011
  • June
Colors
  • Obsidian
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 220 EUR
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Treo Pro, V821.
SpecificationTreo ProV821
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA
Unknown
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation
  • SAR - 0.60 W/kg (head) 0.87 W/kg (body) SAR EU - 0.75 W/kg (head) 0.53 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Radio
  • No
  • FM radio
Others
  • 5-way navigation button
Unknown
Other features
Other features — specifications for Treo Pro, V821.
SpecificationTreo ProV821
Dop
  • Infrared port - Organizer -Pocket Office -Voice memo
  • MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input