Size99 mm x 30 mm x 14 mm (only housing) 108 mm x 30 mm x 14 mm (including the connector)
Weight43.5 g
ProcessorQuad-core 1.7GHz
GPU650MHz
Storage8GB
Wi-FiWi-Fi 6 dual-band: 802.11 a/b/g/n/ac/ax (2.4GHz and 5GHz)
BluetoothBluetooth 5.2 + BLE
Voice SupportYes, with the Alexa Voice Remote (included) or free Fire TV app (available for download on Fire OS, Android, and iOS)
IR device control with included Alexa Voice RemoteThe included Alexa Voice Remote can control Fire TV Stick 4K and certain functions (such as power and volume) on a wide range of compatible IR-enabled devices, including TVs, soundbars and A/V receivers. Note: Certain functions may not be available on some IR-enabled devices.
Cloud StorageFree cloud storage for digital content purchased from Amazon
PortsHDMI 2.1 output with ARC input support, micro USB
Audio SupportDolby Atmos, 7.1 surround sound, 2-channel stereo, and HDMI audio pass through up to 5.1.
4K SupportTo watch movies and TV shows in 4K Ultra HD, you need a compatible Ultra HD TV. All services may not be available in 4K/HDR. Certain services are subject to change at any time, may not be available in all areas, or in 4K/HDR, and may require separate subscriptions.
Content formats supportedVideo: Dolby Vision, HDR 10, HDR10+, HLG, H.265, H.264, VP9, AV1; Audio: xHE-AAC, AAC-LC, AAC+, eAAC+, AAC-ELD, MP3, AMR-NB, FLAC, PCM/WAV, Vorbis, Dolby AC3, eAC3 (Dolby Digital Plus), Dolby Atmos (EC3_JOC), Dolby AC4, Dolby MAT, Dolby TrueHD pass-through, MPEG-H pass-through, DTS passthrough, DTS-HD passthrough (basic profile); Photo: JPEG, PNG, GIF, BMP
Output resolution supported2160p, 1080p and 720p up to 60 fps