Table 20. Battery specifications(continued)
Description Option one Option two
Coin-cell battery
Not applicable Not applicable
CAUTION:
Operating and storage temperature ranges may differ among components, so operating or storing
the device outside these ranges may impact the performance of specific components.
CAUTION:
Dell Technologies recommends that you charge the battery regularly for optimal power
consumption. If your battery charge is depleted, connect the power adapter, turn on your computer, and then
restart your computer to reduce the power consumption.
Display
The following table lists the display specifications of your Inspiron 16 7640 2-in-1.
Table 21. Display specifications
Description Option one Option two
Display type
16-inch, Full High Definition (FHD) 16-inch, QHD+
Touch options
Yes Yes
Display-panel technology
Wide-Viewing Angle (WVA) Wide-Viewing Angle
Display-panel dimensions (active area):
Height
344.68 mm 344.68 mm
Width
215.42 mm 215.42 mm
Diagonal
406.46 mm 406.46 mm
Display-panel native resolution
1920 x 1200 2560 x 1600
Luminance (typical)
300 nits
● 600 nits (HDR)
● 278 nits (SDR)
Megapixels
2.3 4.09
Color gamut
100% sRGB (typical) 100% DCI-P3 (typical)
Pixels Per Inch (PPI)
141 189
Contrast ratio (minimum)
● 1000:1 (minimum)
● 1200:1 (typical)
● 800:1 (minimum)
● 1000:1 (typical)
Response time (maximum)
35 ms 11 ms
Refresh rate
60 Hz 90 Hz
Horizontal view angle
● +/- 80 degrees (minimum)
● +/- 85 degrees (typical)
● +/- 80 degrees (minimum)
● +/- 85 degrees (typical)
Vertical view angle
● +/- 80 degrees (minimum)
● +/- 85 degrees (typical)
● +/- 80 degrees (minimum)
● +/- 85 degrees (typical)
Pixel pitch
0.180 mm 0.134 mm
24 Specifications of Inspiron 16 7640 2-in-1
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