Really? My XPS 15 gets 4 hours easy and it is usually closer to 6.
Also it actually supports 3 (!) 4k displays at 60hz if you include the built in screen. With the TB16 dock it is a joy to use.
Also it actually supports 3 (!) 4k displays at 60hz if you include the built in screen. With the TB16 dock it is a joy to use.