O2 XDA Serra vs verykool s450

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

    s450: 32.5 g lighter

    XDA Serra:
    165 g
    s450:
    132.5 g
  • Width

    XDA Serra: 15.8 mm narrower

    XDA Serra:
    51 mm
    s450:
    66.8 mm
  • Screen diagonal

    XDA Serra: 1.7 in smaller diagonal

    XDA Serra:
    2.8 in
    s450:
    4.5 in
  • Depth

    s450: 8.2 mm thinner

    XDA Serra:
    18.1 mm
    s450:
    9.9 mm
  • Height

    XDA Serra: 29.4 mm shorter

    XDA Serra:
    102 mm
    s450:
    131.4 mm
  • Release year

    XDA Serra:
    2008
    s450:
    2014

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 Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +8.2 mm versus s450
  2. 2. s450

    Height:
    131.4 mm +29.4 mm versus XDA Serra
    Width:
    66.8 mm +15.8 mm versus XDA Serra
    Depth:
    9.9 mm

Weight

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

  1. 1. XDA Serra

    165 g

    +32.5 g versus s450

  2. 2. s450

    132.5 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.

  1. 1. XDA Serra

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. s450

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

s450 has approximately 129.9% more rectangular screen area than XDA Serra.

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 Serra: Original memory entry

288 MB RAM · 512 MB ROM

s450: Original memory entry

4 GB · 512 MB 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 Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. s450

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

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 Serra

    1340 mAh

  2. 2. s450

    1750 mAh

    +410 mAh versus XDA Serra

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 Serra2. s450

Everyday essentials
Everyday essentials — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Dimensions (HxWxD)
  • 102 Х 51 Х 18.1 mm
  • 131.4 Х 66.8 Х 9.9 mm
Weight
  • 165 g
  • 132.5 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 4.5" inch
Screen resolution
  • 480 x 640 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 288 MB RAM
  • 512 MB ROM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1340 mAh
  • Removable Li-Ion
  • 1750 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 4.2 (Jelly Bean)
Chipset
  • Qualcomm MSM7201A
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 55.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 46.7%
  • 63.6%
PPI /points per inch/
  • 286 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 8 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA videocall camera
  • VGA
Performance
Performance — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Processor CPU
  • 528 MHz ARM 11
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Adreno 130
Unknown
General specs
General specs — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Release date
  • 2008
  • July
  • 2014
  • May
Colors
  • Black
  • Black
Battery life
  • Stand by time- Up to 406 h Talking time- Up to 8 h
  • Stand by time- Up to 240 h (3G) Talking time- Up to 5 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for XDA Serra, s450.
SpecificationXDA Serras450
SIM card
  • Mini-SIM
  • Single SIMDual 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 - SIM1 & SIM 2 (optional)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Serra, s450.
SpecificationXDA Serras450
Dop
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity - Flashlight