The 4640x remote doesn't allow TV control setup even though there are volume up & down buttons on the side. I tried to pair a 4660x remote to the 4640 and while it worked to select apps it would not control the volume either.
I wasn't planning to use the Streaming Stick+ as an everyday device, how is it compared long term to the Ultras?
I believe the volume buttons on the 4640 remote will only control volume using CEC. It controls the volume of my Yamaha AVRs that they connect to, or the TV volume if the AVR is powered off and the TV speakers are in use instead. But it's using CEC for that.
My only comment about the Stick models is they tend to run warm. Being placed right next to the TV directly connected to the HDMI port doesn't allow for much air circulation. While I take a Stick with me when I travel, I usually use an HDMI extension cable to move the Stick further away from the TV. Although my 3600 Stick (now over 6 years old) still works fine connected directly to a TV in my grandson's bedroom. It is powered from the TV USB port, so it's not powered up at all times. But when I traveled with it I always used the power cube instead of the hotel TV to provide power, so it would be powered up the entire time I was there. For one trip that was more than three months.
The Ultra has some benefits over any version of the Stick. For one, it has an Ethernet jack, so you can make a wired connection if desired. The Ultra 4800/4802 has double the operational memory (they both have 4 GB of channel storage), and a slightly faster CPU, so a bit more performance. The Ultra also has a USB port, if you would like to play media directly from a USB drive. Note the Ultra LT (4801) sold by Walmart is lacking the USB port.
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