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(Expired) Phone Screen Protector buying tips & launch offer!

Dear YOSH Fans:

This is a complete full guide in choosing best quality phone screen protector, you should be able to identify key factors of top quality ones. Make sure to check Q&A if you have further questions.

Thanks to your support, we have just celebrated our one year Anniversary, and now we have another exciting news to announce. Our new product – Tempered Glass Screen Protector is officially launched in the US. In order to let our customers experience excellent quality screen protectors, we are giving 30% OFF, you should definitely take this chance and see for yourself. Enter promotion code 3VVYVLJR at checkout.

Product link: Tempered Glass Screen Protector(4.7-inch) For iPhone 6/6s/7

Tempered Glass Screen Protector(5.5-inch) For iPhone 6 Plus/6S Plus/7 Plus

We have been getting feedback from our consultant, saying that phone screen protector is not a new concept for consumers, what is it to be excited about? Well, it’s true that a lot of you might be very familiar with screen protector, however what we are going to launch is like no other. It took our engineer years of research to bring the best quality ones. The following is some useful tips we learnt from a interview with our chief engineer. We aim to provide you some insight in choosing top quality phone protectors.


There are a few areas to look into in order to identify the best iPhone protector:

  1. Durability and protection: The best iPhone screen protectors are made from durable material that will protect your screen from more than just day-to-day bumps and scratches. Whether the screen protector is thick or thin, it should be hard and scratch-proof. It should also resist fingerprints and germs.
  1. Design: The screen protector is designed in such a way that it feels smooth under your finger, responds to your touch and doesn’t leave you feeling like your finger is floating above the screen – regardless of how thick it is. It also should also come with a cleaning cloth to help you get all the fingerprints, oil and dust off your screen before you apply the iPhone screen protector.
  1. Installation: The best protectors go on easily without trapping air bubbles or requiring constant re-positioning. If you do need to adjust your protector, it should move easily so that you don’t have to throw it away if you don’t get it right the first time. If you want to remove the protector altogether, it shouldn’t leave sticky adhesive residue on your screen.
  1. Warranty & Support: The good companies in this industry back their products with generous return policies and money-back guarantees. The best ones like YOSH provide lifetime warranties.


In order to further classify how we approach to the finest quality screen protectors, we performed several experiments. They are intuitive and precisely expressed features of YOSH screen protectors.

Experiment one: Anti scratch/abrasion

Brief introduction:
YOSH tempered glass screen protector and screen protectors purchased from other brands and tested separately under same experimental conditions to ascertain its strength and quality. They are tested against significant friction produced by high speed rub to ensure that they are of high quality.

Experiment instrument:
YOSH Tempered glass screen protector;
Screen protectors purchased from other brands;
Scratch test equipment.

Experiment process:
1: Set the test equipment to perform 10 units (1000 times per unit) of high speed movement to produce significant friction.
2: Insert YOSH Tempered glass screen protector for test, observe and record;
3: Insert the other screen protector for test under the same experimental condition, observe and record.

Experiment results:

After 3 units of rub, the ordinary screen protector cracked completely but the YOSH tempered glass screen protectors suffered minor scratches that are almost invisible to the eyes. In the course of the experiment, the YOSH Tempered glass screen protector withstood up to 9 units of rub while the other screen protectors could only withstand 3. This experiment shows that the YOSH Tempered glass screen protector is a dogged screen protector with an excellent scratch resistance, it can also be trusted in some very extreme conditions.


Experiment two: Impact force:

Brief introduction: YOSH tempered glass screen protector and screen protectors purchased from other brands are tested separately under same experimental conditions. Screen protectors are held firmly in the air and a steel ball (industrial standard weight 63g) is dropped from different heights to test the level of force the protectors can withstand.

Experiment instrument:
YOSH Tempered glass screen protector;
Screen protectors purchased from other brands;
Impact force test equipment*2.

Experiment process:
1: Set the height of both test steel ball container at 30cm, place the ball into the container.
2: Insert YOSH Tempered glass screen protector then release the ball, observe and record;
3: Insert the other screen protector under the same experimental condition then release the ball, observe and record.
4: Set the height of both test steel ball container at 65cm, place the ball into the container, perform the experiment again.

Experiment results:
The ball released at 30cm level went through and shattered the ordinary screen protector, but when it landed on YOSH screen protector it didn’t cause any damage to the protector. In fact the YOSH tempered glass screen protector was able to withstand impact force released from 65.5cm. Needless to say, this shows that the YOSH tempered glass screen protector is durable and can protect your phone from damages when it falls or slips from you.


Experiment 3: Anti Fingerprint

Brief introduction: Even if you are very careful with the way you use your phone, you might be unable to do that without leaving fingerprints/marks on the screen during your everyday uses. But the YOSH Tempered glass protector is coated with an oleophobic layer that will help you prevent fingerprints and marks from marring the screen of your phone. The YOSH Tempered glass protector from other brands to test its resistance to fingerprints.

Experiment instrument:
YOSH Tempered glass screen protector;
Screen protectors purchased from other brands.

Experiment process:
1. Place both screen protectors on a table.
2. Touch both screen protectors several times simulating everyday use.
3. Observe and record.

Experiment results:

From the results gotten from the experiment, fingerprints can be seen clearly on the ordinary protectors but on YOSH Tempered glass protector you can barely see a mark on it because the surface is coated with oleophobic layer to provide a smooth surface and prevent fingerprints from deforming the screen of your phone.


Q&A

Q: Do I need screen protection on iPhone 7/7 Plus?

A: Yes you do. An iPhone is a substantial investment. It is your everyday companion that you rely on, however it is not incredibly durable. One slip and the screen can crack. A few minutes in your pocket with your keys, and it can have scratches. However, even if you manage to avoid these kinds of woes, you’ll still have to deal with the continual parade of fingerprints and the greasy smudge from resting the phone against your cheek during calls. One simple screen protector can solve all these problems and help you keep your iPhone in better conditions; the YOSH Tempered Glass screen protector is best in helping you keep your phone in perfect physical condition.

Q: Can this protector actually protect iPhone screen?

A: Yes, YOSH Tempered Glass screen protector is made from high durability material. It will protect iPhone from scratch, impact force and fingerprint. Additionally, the self-healing material enables the protector recover from small scratches.

Q: Does the screen protector support 3D Touch?

A: Yes, the screen protector is incredibly thin; it is only 0.26mm, it feels fantastic. It is even smoother than the original screen, it is highly responsive and it absolutely supports 3D touch.

Q: How strong is the protector?

A: Due to the results of YOSH Experiment, the protector can withstand impact of steel ball (64g industrial standard) falling from 65.5cm, while other protector can withstand impact from 30cm.

Q: Is the protector fingerprints resistance?

A: Yes, the material is coated with an oleophobic layer that repels oil. This means that even though smudges from your fingertips and face will still show up, they’re easily repelled.

Q: What kind of warranty do I have?

A: YOSH values every customer and promise to give every customer a lifetime warranty, which means if you are unsatisfied with the protector you can contact customer support for a replacement anytime, anywhere.

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