The Gigastone SD Card carries the usual micro SD card style as most other cards. The Prime variant gets a splash of red and grey colors along with some writing on top, which looks similar to the Samsung Evo Plus. You don’t have to worry about the quality, as the cards are waterproof, shockproof, X-Ray proof, and temperature proof. One card weighs about 40 grams only, and is 0.3mm thick. The Samsung 512GB Micro SD is certainly more stylish, and carries an official IPX7 waterproof rating.