Screen size: Nexus 9 vs iPad Air vs Galaxy Tab S 8.4

Screen Size comparison: Nexus 9 need to be compared with Galaxy TabS 8.4!

1. iPad Air
- Diagonal size: 9.7"
- Aspect ratio: 4:3
- Screen size: 7.75" x 5.83"
- Actual image size for 16:9 video source: 7.75" x 4.36"

2. Nexus 9
- Diagonal size: 8.9"
- Aspect ratio: 4:3
- Screen size: 7.11" x 5.35"
- Actual image size for 16:9 video source: 7.11" x 4.0"

3. Galaxy TabS 10.5
- Diagonal size: 10.5"
- Aspect ratio: 16:10
- Screen size: 8.9" x 5.56"
- Actual image size for 16:9 video source: 8.9" x 5.0"

4. Galaxy TabS 8.4
- Diagonal size: 8.4"
- Aspect ratio: 16:10
- Screen size: 7.12" x 4.45"
- Actual image size for 16:9 video source: 7.12" x 4.0"


Since both iPad Air and Nexus 9 have 4:3 screen ratio, the screen size of Nexus 9 is slightly smaller than iPad Air in length and width, as the diagonal size showed.
However, when Nexus 9 or iPad Air is compared with Samsung's Galaxy Tab series, we should be aware of the different screen ratio. Actually, the length of Nexus 9 screen is same with the Galaxy TabS 8.4, not with the 10.5 model. It means if you're using tablet mainly for watching videos, Galaxy TabS 8.4 has same visible screen size with Nexus 9 if you play 16:9 or any wide-screen videos. Nexus 9 is 0.9" wider than TabS 8.4, but both are in the same length.

In this manner, TabS 8.4 can be also an alternative for Nexus 9 for those who are mainly watching wide-screen videos on their tablets.