I'm looking into buying the Note4 and noticed in the specs that the max SD memory supported is 64GB - that probably explains the freezing problems with 128.
What comes in the box
Samsung Galaxy Note 4, Stereo headset, Rechargeable battery, AC charger, USB sync and charging cable
Operating System Android
Screen 5.7” qHD Super AMOLED (2560 x 1440)
Camera Rear: 16MP with Smart OIS Front: 3.7MP
Processor 2.7 GHz Quad Core
Battery 3220 mAh
HD Voice No
Internal Memory 32 GB
Expandable Memory Up to 64 GB microSD
Weight / Dimensions 176g3 / 153.5mm X 78.6mm X 8.5mm3
SIM Card NFC Micro SIM
What comes in the box
Samsung Galaxy Note 4, Stereo headset, Rechargeable battery, AC charger, USB sync and charging cable
Operating System Android
Screen 5.7” qHD Super AMOLED (2560 x 1440)
Camera Rear: 16MP with Smart OIS Front: 3.7MP
Processor 2.7 GHz Quad Core
Battery 3220 mAh
HD Voice No
Internal Memory 32 GB
Expandable Memory Up to 64 GB microSD
Weight / Dimensions 176g3 / 153.5mm X 78.6mm X 8.5mm3
SIM Card NFC Micro SIM