Could you guys please tell what manufacturers you know who is strong enough on the market. Besides Ledger and Trezor.
Open source hardware wallets.
Ledger is much more active in marketing and advertising than Trezor and they have sold more devices, but that doesn't mean their HWs are better. You can see Bud Light advertisements all over the place and they have a strong market share, but a proud European beer drinker would never take that over a proper German beer.
I am a Ledger user for many years already. They are a closed-source wallet with closed-source chips and firmware.
Does the wallet do what it's main goal is - to protect your private keys and digital assets? Yes it does.
Have they started using bad/cheap quality materials? Yes, they have.
Have they (together with a 3rd-party) leaked millions of private data of their customers? Yes, they have.
Am I satisfied with my purchase? If it wasn't for the partial data leak of my private info, I would be fully satisfied. But now, the overall feeling is mediocre.
As you can see, a strong market presence doesn't mean everything.
Since you aren't considering closed-source wallets, don't look at Ledger. If I was on the hunt for a new hardware wallet, I would consider either a Trezor or a Passport Foundation Batch 2. Keep checking the hardware wallet sub because we are anticipating n0nce's review of the Batch 2 after it gets shipped to him.