Owner manual

Display
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Type 14.0” HD WLED TrueLife
(1366 x 768)
14.0” HD+ WLED TrueLife
(optional) (1600 x 900)
(Inspiron 14R-5420/7420)
15.6” HD WLED TrueLife
(1366 x 768)
15.6” FHD WLED, AG
(optional) (1920 x 1080)
Maximum resolution 1600 x 900 (Inspiron 14R-
5420/7420)
1366 x 768 (Inspiron
M421R-5425)
1920 x 1080
Dimensions
Height
173.95 mm
(6.85 inches)
193.54 mm
(7.62 inches)
Width
309.40 mm
(12.18 inches)
344.23 mm
(13.55 inches)
Diagonal
355.60 mm
(14.00 inches)
396.42 mm
(15.60 inches)
Refresh rate 60 Hz 60 Hz
Operating angle
0 degree (closed) to
135degrees
0 degree (closed) to
135degrees
Horizontal viewing angle 40/40 40/40
Vertical viewing angle 15/30 (H/L) 15/30 (H/L)
Pixel pitch 0.226 mm x 0.226 mm 0.252 mm x 0.252 mm
Camera
Inspiron
14R-5420/7420/
M421R-5425
Inspiron
15R-5520/7520/
M521R-5525
Camera resolution 720p HD;
1280 x 720 pixels
720p HD;
1280 x 720 pixels
Video resolution
(maximum)
1280 x 720 pixels 1280 x 720 pixels
Diagonal viewing angle 60 degrees 60 degrees