Samsung Galaxy A06 5G and Galaxy A56 is confirmed to have 5G SA + 5G-A from Yes - personally tested it via both Yes Postpaid and Prepaid (both updated with Android 16 software) - it is unlisted there.

I think for Samsung devices, as long as the device have Android 16+, you will most certainly get 5G SA, and possibly 5G-A (N28+N78) from Yes.

Other manufacturers - unknown.
Well they have a promo - 50GB for RM15/30 days (Normally RM20, promo until 15 March 2026 - or further extension if Yes chose to do so), or you can get unlimited data (full speed 5G, 7mbps 4G), 12GB hotspot for RM30/30 days (Auto pay - RM25/30 days - RM5 off). This is alongside the RM10 starter pack.

Also for those subscribe to RM20 plan, you can add on for RM15/50GB - promo - valid until the end of the pass (but you can also choose to renew it for the same RM15 - promo - the data simply carries forward to the new pass, validity also renewed to 30 days from purchase).

In order for the data to carry forward, you have to purchase it before the end of the pass, also the pass must be the same type (if you purchase the RM20 pass, you need to buy the same RM20 pass in order to carry forward your data). If not, the data won't be carried to next month (burn).

Their RM20/50GB (now RM15 promo), is more valuable than RM10/20GB. You pay a little bit more (RM5 extra to RM10) to test, and you get 2.5X more data to rest for a month.

You can actually choose these options - as starter packs online, via yes App - via physical SIM (delivery takes a few days) or via eSIM (instant).