Few days back, I received Samsung’s 8GB class 4 microSDHC card from the Memory Card Zoo for reviewing it which claims to be the waterproof, shockproof and magnet proof. We will figure out, whether these claims are true or it’s just a marketing strategy..
But before testing Samsung’s bold claim-firstly check out the performance result of 8GB class 4 microSDHC card.
1. This test is conducted on a Windows 7 OS using USB data cable.
2. Above result is taken from Samsung Galaxy 5 smartphone running Android 2.1 using SDtool and you’ll notice the read speed of ~5-7MB/s and write speed is 13-15MB/s. (after testing 5 times).
So the result is pretty much same as Samsung have mentioned (more specs and features at the end of this review).
Is it shock proof?
Samsung website says it’s OK to step on the card, so I kicked it and jumped on this card more than 3-4 times and this little Samsung 8GB microSDHC card was unfazed.
So, the answer is YES, it is shock-proof.
Is it magnet proof?
Samsung site claims that it’s safe from X-ray and magnet. I don’t have an X-ray machine so I can’t test this but the magnet test? I did test Samsung 8GB class 4 microSDHC card with magnet by introducing it to the fridge magnet many times and this is not it, I even introduce it to the speaker’s magnet and once again nothing happened--it’s working very well.
Is it waterproof?
I left this test for the last, because I don’t want to risk losing this card very quickly. I kept this card in a mug of water for more than 6 hours (I want to place it for more than 20 hours but I’m little impatient in this case as Samsung claims that the card can live in seawater for up to 24 hours)
Want to know what happened next? It survived! as it is covered with EMC (Epoxy Molding Compound) to protect Samsung NAND flash memory chips from the threat of water and dust.
Wrap-up
After testing Samsung big claims, we’re finally sure of the fact that this is not a marketing strategy--Samsung’s 8GB MicroSDHC class 4 card really is shock proof, water proof and magnet proof.
If you really impressed with class 4 microSDHC card and you want to buy it—you can buy it from Memory Card Zoo.
Specs/Features of Samsung microSDHC class 4 card
Environment
- Storage Temperature: -40°C to 85°C
- Operating Temperature: -25°C to 85°C
- Humidity: 40°C, 93%, 500hr (storage)
- Durability: 10000 mating cycles
Certification
- EMC: FCC, CE, MIC
Compatibility
- Compatible Device: Mobile phone, PDA
Features
- Interoperable: With SD slot via SD adapter
- Protection: Mechanical Write Protection Switch
- Shock-Proof: Yes
- Standardized: Complies with SD card specification standards
- Ultra-Portable: Extremely small footprint design
- Versatile: When combined with the included adapter, can be used as a full - size SD card
- Warranty: Lifetime warranty
- Water-Proof: Yes
General
- Capacity: 8GB
- Dimension: 15 x 11 x 1mm
- Family Line: Standard
- Operating Voltage: 2.7 ~ 3.6V
- Product Type: MicroSD
- Weight: Approx 0.5g
Speed Class
- Speed (Read):15MB/sec
- Speed (Write): 6 ~ 7MB/sec
- Speed Class: Class 4
Warranty
- Warranty: 5 Years limited warranty
- Warranty (Data Retention): 10 Years under normal use
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