Energizer Ultimate U620S vs Fujitsu Siemens T810

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.

  • Width

    Siemens T810: 11.5 mm narrower

    Ultimate U620S:
    75.5 mm
    Siemens T810:
    64 mm
  • Screen diagonal

    Siemens T810: 3.8 in smaller diagonal

    Ultimate U620S:
    6.2 in
    Siemens T810:
    2.4 in
  • Depth

    Ultimate U620S: 12.7 mm thinner

    Ultimate U620S:
    8.3 mm
    Siemens T810:
    21 mm
  • Height

    Siemens T810: 29.8 mm shorter

    Ultimate U620S:
    155.8 mm
    Siemens T810:
    126 mm
  • Release year

    Ultimate U620S:
    2019
    Siemens T810:
    2006

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. Ultimate U620S

    Height:
    155.8 mm +29.8 mm versus Siemens T810
    Width:
    75.5 mm +11.5 mm versus Siemens T810
    Depth:
    8.3 mm
    Weight:
    Unknown
  2. 2. Siemens T810

    Height:
    126 mm
    Width:
    64 mm
    Depth:
    21 mm +12.7 mm versus Ultimate U620S
    Weight:
    190 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. Ultimate U620S

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    18.5:9
    Approximate rectangular screen area:
    97.6 cm²
  2. 2. Siemens T810

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    18.6 cm²

Ultimate U620S has approximately 425.1% more rectangular screen area than Siemens T810.

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.

Ultimate U620S: Original memory entry

64 GB · 512GB 4GB

Siemens T810: Original memory entry

64 MB RAM · 128 MB 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. Ultimate U620S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses SIM 2 slot)

2. Siemens T810

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SD

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. Ultimate U620S

    4000 mAh

    +2500 mAh versus Siemens T810

  2. 2. Siemens T810

    1500 mAh

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. Ultimate U620S2. Siemens T810

Everyday essentials
Everyday essentials — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Dimensions (HxWxD)
  • 155.8 Х 75.5 Х 8.3 mm
  • 126 Х 64 Х 21 mm
Weight
  • 0 g
  • 190 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.2" inch
  • 2.4" inch
Screen resolution
  • 720 x 1520 px
  • 240 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 128 GB (uses SIM 2 slot)
  • SD
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Removable Li-Po
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Microsoft Windows Mobile 5.0 Phone Edition
Chipset
  • Mediatek MT6765 Helio P35 (12nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 97.6 cm2
  • 18.6 cm2
Screen format
  • 18.5:9 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 82.9%
  • 23.0%
PPI /points per inch/
  • 265 PPI
  • 141 PPI
Camera and Video
Camera and Video — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Rear camera, main
  • 16 MP
  • Triple
  • 0 MP,
Camera specs
  • 16 MP
  • PDAF -2 MP -VGA
  • depth sensor
Unknown
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Unknown
Video
  • 1080p
Unknown
Front camera, selfie
  • 16 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 16 MP
Unknown
Performance
Performance — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • Intel PXA272 416 MHz
Graphics processor GPU
  • PowerVR GE8320
Unknown
General specs
General specs — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Release date
  • 2019
  • January
  • 2006
  • August
Colors
  • Aurora Red
  • Aurora Blue
  • Silver
Battery life Unknown
  • Stand by time- Up to 150 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • 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)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA
  • LTE-A
  • Yes
  • 384 kbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • SiRF GCS3F receiver
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • Proprietary
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
Music and Audio
Music and Audio — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
  • 5-way navigation key
Other features
Other features — specifications for Ultimate U620S, Siemens T810.
SpecificationUltimate U620SSiemens T810
Dop
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Organizer -Voice memo