Samsung i770 Saga vs vivo X20

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

    i770 Saga: 29 g lighter

    i770 Saga:
    130 g
    X20:
    159 g
  • Width

    i770 Saga: 13.2 mm narrower

    i770 Saga:
    62 mm
    X20:
    75.2 mm
  • Screen diagonal

    i770 Saga: 3.46 in smaller diagonal

    i770 Saga:
    2.55 in
    X20:
    6.01 in
  • Chipset

    i770 Saga:
    Qualcomm MSM7500
    X20:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layout

    i770 Saga:
    Single
    X20:
    Dual
  • Depth

    X20: 6.3 mm thinner

    i770 Saga:
    13.5 mm
    X20:
    7.2 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. i770 Saga

    Height:
    124 mm
    Width:
    62 mm
    Depth:
    13.5 mm +6.3 mm versus X20
  2. 2. X20

    Height:
    155.9 mm +31.9 mm versus i770 Saga
    Width:
    75.2 mm +13.2 mm versus i770 Saga
    Depth:
    7.2 mm

Weight

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

  1. 1. i770 Saga

    130 g

  2. 2. X20

    159 g

    +29 g versus i770 Saga

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. i770 Saga

    Screen diagonal:
    2.55 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    21 cm²
  2. 2. X20

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

X20 has approximately 344.4% more rectangular screen area than i770 Saga.

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.

X20: Original memory entry

64 GB · 512GB 4GB

Practical features

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

1. i770 Saga

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

2. X20

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. i770 Saga2. X20

Everyday essentials
Everyday essentials — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Dimensions (HxWxD)
  • 124 Х 62 Х 13.5 mm
  • 155.9 Х 75.2 Х 7.2 mm
Weight
  • 130 g
  • 159 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.55" inch
  • 6.01" inch
Screen resolution
  • 320 x 320 px
  • 1080 x 2160 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 3250 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8.0 (Oreo); Funtouch 3.2
Chipset
  • Qualcomm MSM7500
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 21.0 cm2
  • 93.2 cm2
Screen format
  • 1:1 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 27.3%
  • 79.5%
PPI /points per inch/
  • 177 PPI
  • 402 PPI
Camera and Video
Camera and Video — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Rear camera, main
  • 2 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 2 MP
  • 12 MP
  • f/1.8
  • AF -5 MP
  • depth sensor
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 12 MP
  • Single
Specifications Unknown
  • 12 MP
  • f/2.0
Performance

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

Performance — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Processor CPU
  • 400 MHz ARM 11
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU Unknown
  • Adreno 512
Antutu 7 score * Unknown
  • 142753
GeekBench 4 Single Core * Unknown
  • 1907
GeekBench 4 Multi-Core * Unknown
  • 4546
GeekBench 4 RenderScript * Unknown
  • 5409
General specs
General specs — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Release date
  • 2008
  • November
  • 2017
  • September
Colors
  • Black
  • Red
  • Blue
  • Matte Black
  • Black/Gold
  • Gold
  • Rose Gold
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 140 EUR
  • 390 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 7 h
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for i770 Saga, X20.
Specificationi770 SagaX20
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) LTE band 1(2100)
  • 4(1700/2100)
  • 8(900) - X20A
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.68 W/kg (head) 0.53 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Radio
  • No
  • No
Others Unknown
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for i770 Saga, X20.
Specificationi770 SagaX20
Dop
  • Pocket Office -Voice memo/dial -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Predictive text input For Verizon
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 9V/2A 18W