Question 1

What’s the difference between the original firestick and the 4K? (Other than the 4K res)

Accepted Answer

The very best improvement that makes the purchase worthwhile is the updating of the WiFi. This has everything to do with a program buffering.
As an example, my original Firestick in the back bedroom (I own 4 Firesticks) showed an Internet Speed of 21mbps. With the new 4k not only is the procrssor speed faster it shows an Internet speed of mid 70's mbps.
This fact alone makes it a must. I do like the volume & on/off button also.

Question 2

How Is This Set Up?

Accepted Answer

The Fire stick has a small mini-USB port on the side and the big HDMI connector sticking out in the front. The HDMI connector gets plugged-in to the HDMI port of the TV. The product comes with a mini-USB to USB cable. Connect one of the cable to the Fire Stick and the other end to the power adapter (also included in the product.) Once the Fire TV is powered on, you might have to select the source on the TV to specify which input port  the Fire TV is connected to (this is no different than any other input source you would have tried to connect to the TV e.g. a blu ray player)

Upon plugging in the Fire TV for the first time the setup process will do the following:
1. Selecting the language
2. Configure Wireless internet's configuration.
3. Once that is done Fire TV installs and downloads the latest software. Software download did not take much time but the installation took 3 minutes.
4. Fire TV then sets up the remote to control the TV. It asks you to control the volume of TV using Fire TV's remote.
5. After that, you can connect the Fire TV to your account. If you purchased the Fire TV from Amazon, then it is already connected to your account.
6. You can set up parental controls after connecting the Fire TV to your account.
7. After this, a brief video of Fire TV's features is shown.
8. After the video interface of Fire TV is shown.

Question 3

Can this be used on any tv other than a 4k

Accepted Answer

Yes, I use mine on the HDMI 2.0 port of my 4K PC monitor, no traditional TV needed! But you can install on any TV that's not 4K, as long as it has an HDMI port. In fact, a lot of broadcasts aren't 4K anyway, it upscales to fit the monitor or TV. Yet this one is worth the extra for it's features, compare with the others on bottom of the spec page & see. In the event you do get a 4K TV (or PC monitor), you're ready to go!

Question 4

Do you have to have a 4K tv ?

Accepted Answer

No...
IF YOU DO NOT HAVE A 4K TV, it's a waste of money. 
This device does not turned any television into a 4k. Your existing television has a limit on the definition.
Plus, like another person wrote; ",There really isn't any 4k programming out there. And,  Xfinity. (If you're unlucky enough to have them), doesn't support 4k.

B4 buying a 4k Fire Stick, make sure that your Cable Provider offers it and buy a 4k ultra high definition television.

Size	99 mm x 30 mm x 14 mm (only housing) \| 108 mm x 30 mm x 14 mm (including the connector)
Weight	53.6 g
Processor	Quad-core 1.7 GHz
GPU	IMG GE8300
Storage	8 GB internal
Wi-Fi	Dual-band, dual-antenna Wi-Fi (MIMO) for faster streaming and fewer dropped connections than standard Wi-Fi. Supports 802.11a/b/g/n/ac Wi-Fi networks.
Bluetooth	Bluetooth 5.0 + LE. Pair with compatible Bluetooth speakers, headphones, video game controllers, and more.
Voice support	Yes, with Alexa Voice Remote (included) or the free Fire TV app (available for download on Fire OS, Android, and iOS).
IR device control with included Alexa Voice Remote	The included Alexa Voice Remote can control the 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 storage	Free cloud storage for digital content purchased from Amazon.
Ports	HDMI output, micro-USB for power only.
Audio support	Dolby Atmos, 7.1 surround sound, 2-channel stereo, and HDMI audio pass through up to 5.1. Dolby Atmos is available on select Prime Video, Netflix, and Disney+ titles when connected to compatible equipment.
4K support	To 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. Learn more about services.
Content formats supported	Video: Dolby Vision, HDR 10, HDR10+, HLG, H.265, H.264, VP9 Audio: AAC-LC, AC3, eAC3 (Dolby Digital Plus), FLAC, MP3, PCM/Wave, Vorbis, Dolby Atmos (EC3_JOC), Photo: JPEG, PNG, GIF, BMP
Output resolution supported	2160p, 1080p and 720p up to 60 fps
System requirements	High-definition television with available high-speed HDMI input, high-speed internet connection via Wi-Fi
TV compatibility	TV must support minimum HDCP requirements for protected content playback. Compatible with 1) 4K ultra high-definition TVs with HDMI capable of 2160p at 24/25/30/50/60 Hz and HDCP 2.2 or 2) high-definition TVs with HDMI capable of 1080p or 720p at 50/60 Hz. Learn more about high-definition.
Warranty and service	1-year limited warranty and service included. Use of Security Cameras is subject to the terms found here. License information can be found here. This device receives the same limited warranty as a new device. Learn more about Like-New Amazon devices.
Regional support	Certain services may not be available outside the U.S.
Accessibility features	VoiceView screen reader enables access to the vast majority of Fire TV features for users who are blind or visually impaired. Watch videos and TV shows with closed captioning displayed. Captions are not available for all content. You can also listen to Fire TV with compatible Bluetooth headphones. Learn more about accessibility for Fire TV.
Included in the box	Fire TV Stick 4K, Alexa Voice Remote (2nd Gen), USB cable and power adapter, HDMI extender cable for Fire TV Stick 4K, 2 AAA batteries, Quick Start Guide
Software Security Updates	Learn more about software security updates. If you already own a Ring device, visit Software Security Updates in Ring Control Center for information specific to your device.
Size	38 x 142 x 16 mm
Weight	43.4 g (without batteries)
Batteries	2 AAA (included)
Technology	Bluetooth
Compatibility	Fire TV Stick 4K, Fire TV Stick Lite, Fire TV Stick (3rd Gen), Fire TV Stick (2nd Gen), Fire TV Cube (2nd Gen), Fire TV Cube (1st Gen), Fire TV (3rd Gen Pendant Design)
Software Security Updates	Learn more about these software security updates. If you already own a Fire TV, visit Manage Your Content and Devices for information specific to your device.

Fire TV Stick 4K streaming device with Alexa Voice Remote (includes TV controls) | Dolby Vision

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