For the P6ers, do check out the list of approved calculators models and approved e-dictionaries models for PSLE to make sure that what you have is approved by SEAB and allowed in examination hall. 

The school will check your calculator / dictionary and provide a sticker as proof that it is under approved models, prior to the exam.

If your model is not in the list, go to SEAB website for the full list - it may be under previously approved model, which still can be used. 

If you have no idea which to buy, click here for my recommendation.




Source: https://go.gov.sg/seab-approvedcalculators






Source: https://go.gov.sg/seab-approveddictionaries

For past approved models and more information, do check out the source link.