A:AnswerPre-Owned are generally used laptop, refurbished are generally having some or other minor defect which was resolved by best buy and put for sale, it will carry with product warrantly so nothing much to worry.
A:AnswerThis is the i5 1.6 chip that is installed in the MacBook Air I purchased through BestBuy (description from Wikichip:
Core i5-8210Y is a 64-bit dual-core mid-range performance x86 mobile microprocessor introduced by Intel in late 2018. This chip, which is based on the Amber Lake microarchitecture, is fabricated on Intel's 14 nm process. The i5-8210Y operates at 1.6 GHz with a TDP of 7 W supporting a Turbo Boost frequency of 3.6 GHz.
Hope this helps
A:AnswerAll Apple products have a warranty that’s valid internationally. I’ve been able to get support overseas for my laptop via phone and in store. I also purchase the extended Apple care and it’s invaluable long after the initial year warranty ends. I don’t have many issues ever with my laptop, unlike the many issues I had with my HP, Dell, or Acer computers, but I will say the support has been too notch with Apple.