Yes, iTel S41 does have a memory card slot.
Yes, iTel S41 does have the eye protection mode which reduces strain for long reading.
iTel S41 weight is just 155 Grams.
iTel S41 dimensions are 144 x 72.4 x 8.3 mm.
No. iTel S41 does not have a hybrid sim slot. It has 1 dedicated slot for MicroSD card and 2 dedicated sim card slots.