Handhelds for WMS and MSCA

Hello,

We are currently using Intermec CK31 handhelds for our WMS and MSCA transactions and we have also purchased some CK3's, but are having trouble loading Oracle apps onto them and the one handheld that we were able to finally load, we're not able to expand the pick_id field.  The performance of the handhelds could be better, they hang up a lot, screens are hard to manuveur, function keys don't work..etc.  We do have enough data ports to handle the connections.

Are there any handhelds, other than Intermecs, that you would recommend that perhaps would function better.