Do you have to have gloves (vs. mittens)? I have UGG shearling gloves, and while they are comfy and pretty, they really don't hold the heat as well as mittens. Currently, my go-to mittens (which have gloves inside,) are Ororo Amsterdam battery heated. When you push the button, the mittens heat up very quickly. If it's very cold outside, the heat in the mittens is not like an electric blanket kind of hot, it just keeps your hands comfortable and not cold.

https://www.ororowear.com/products/2020-unisex-heated-mittens

My warmest mittens are double knitted so there is a knitted lining. The double thickness holds in the warmth. They would be great if they had the fold over tip to expose fingertips which I have seen lately.

I love mine which are like the ones lpink describes. They are very thick wool with a fleece liner and i can insert one of those disposable handwarmers when the mitten cover is on. The inside tag says Snow Star Convertible and it looks like the brand is Manzella. They looks exactly like these.

I love these "multi-mitts." Even the thumb can be uncovered if you want.

Mittens are much warmer. If you need to have available fingers, You could get the foldover mittens, and maybe add a silk glover liner. I did a walking tour in England with silk glove liners under lightweight windproof mittens, and while the temperature didn’t go below 40F, certainly not to our winter temps, it was effective at being warm and lightweight.

I heard a Chicago crossing guard recommend wearing a latex glove under other gloves. It helps to retain heat and moisture. I tried it and my fingers did feel warmer. I blow into the latex glove (I keep a box for kitchen work and messy jobs), put my hand in, and then top with a mitten/glove. I reuse the latex gloves all winter. I keep them stored in the mittens.

That set-up won’t help with using tech, but I’ve never had any luck with tech compatible gloves so it isn’t a loss for me.

You could find lamb fur shearling gloves on ebay for around $20 ( before Covid).

Update: they’re $21.99 now, just checked.

Layer glove liners, under regular gloves (help greatly in Chicago winters).🖐

If cashmere lined leather would work for you, I recently ordered some from Land's End. I'm returning them only because they run small. Both pair were a size smaller than the size chart would indicate, so I'm waiting on new pairs for myself and a gift. They have technology tips on both the thumbs and index fingers, which I thought was a nice touch. The index fingers worked well. The thumb not so much but I am hoping that is because they were small and my thumb didn't go all the way into the glove. They will be warm enough for me -- with a liner even warmer.