Similarities and difference between Roku 3 and Roku 4

Similarities within Roku 3 and Roku 4

• Have the ability to connect to hotel and college dorm networks

• Enhanced voice search

• Supports included headphones plug-ins into the enhanced remote

• Play games using a motion-control remote that features special gaming buttons.

Difference

Roku 3

Roku 4

HDMI

HDMI (4K video via HDCP 2.2 HDMI?)

Maximum output video resolution is 1080p

4K Ultra HD support

802.11 (a/b/g/n compatible) with WEP, WPA, and WPA2 support

802.11ac MIMO wireless

dual-core Broadcom Merlyn 900 MHz processor

Quad-core processor for 4K Ultra HD

No such features

Speaker for Remote Finder alerts

Digital over HDMI

Dolby Digital Plus 7.1 surround sound passed through via HDMI or optical output

Power Consumption - Less than 3.5W (typical) when streaming HD video

Power Consumption - 12.4W (typical) when streaming 4K UHD video

Power Adapter - 12V – 2A power adapter

Power Adapter - 12V – 1A power adapter

Limited support to USB media formats

Video: MP4 (H.264), MKV (H.264)

Audio: AAC, MP3

Image: JPG, PNG

Supports more USB media formats

Video: MP4 (H.264), MKV (H.264), HEVC (H.265)

Audio: MP3, Apple Lossless, WMA, AAC

Image: JPG, PNG, up to 4K UHD resolution

Size - 6.5 x 6.5 x 0.8 inches with 0.9 lb weight

Size - 3.5 x 3.5 x 1 inches with 5 ounces weight

Roku 3 has 512 MB of RAM

The Roku 4 has 1.5 GB of RAM