Remember Samsung inhouse Tizen OS based smartphone Samsung Z3 has an upgrade in form of Samsung Z3 Corporate Edition.
The all new Z3 has the same specsheet but the processor which was Spreadtrum based SoC, is being replaced by Qualcom Snapdragon 410.
Also the new edition has improved security and is enterprise ready, with SAFE certification. With inclusion of SD410 it now is based on 64bit architecture and 4G LTE is also onboard.
If you are looking to grab one of these The Linux Center Store (Official Samsung Partner), is selling Z3 Corporate Edition in Russia at just RUB 16,618 with a hefty 15% discount for purchases before end of June.