Put simply, an SSD isn't the same as a hard drive. Hard drives use magnetically sensitive platters which are moved by a motor, whereas an SSD uses flash memory without any moving parts, meaning they are faster.

Which is better SSD or HDD?

SSDs in general are more reliable than HDDs, which again is a function of having no moving parts. ... SSDs commonly use less power and result in longer battery life because data access is much faster and the device is idle more often. With their spinning disks, HDDs require more power when they start up than SSDs.

How is data stored in SSD?

Solid-state drives are called that specifically because they don't rely on moving parts or spinning disks. Instead, data is saved to a pool of NAND flash. NAND itself is made up of what are called floating gate transistors. ... This makes NAND a type of non-volatile memory.