About ESR Tech (US)

ESR makes phone and tablet accessories and sells them direct, and it is best known for building magnetic attachment into cases for phones that did not come with it.

What is in the range

Protective cases dominate, from slim clear shells to armoured ones aimed at children, with vegan leather versions above them. Screen protectors cover tempered glass, privacy filters and anti-glare finishes. Then there is the charging half of the business: magnetic pads and stands, retractable cables, multi-port GaN wall chargers, car chargers and charging stations that handle a phone, watch and earbuds at once. iPad cases with detachable keyboards, AirPods cases, watch straps and wallets fill out the rest.

What the magnetic labelling actually means

Worth understanding before ordering. The magnet ring built into a case is what lets a phone snap onto a stand or pad, and it can be added to a phone that has no magnets of its own. Snapping on is not the same as fast wireless charging, though: the speed depends on the certification the charger and phone both support, and a case that merely holds a magnet does not raise it. Check the case is cut for your exact model rather than the family, since camera arrays move between generations, and note that a thick case can slow or block wireless charging altogether.

Applying the discount code

Choose the device model first, since the site sorts everything by handset, then open the basket and put the code into the discount field before payment and confirm the total updates. Codes here are often written against one product family, so one issued for chargers will not move a case. Bundles that pair a case with a screen protector are already discounted as a set and will not usually take another code on top. One code per order.

Buying accessories sensibly

Screen protectors are cheapest bought as a multipack, since the first fitting rarely goes perfectly and a spare turns a ruined attempt into an inconvenience. Free shipping applies above a stated order value, which makes a case and a protector together cheaper than either alone with postage. Newly released handsets get accessories quickly here but at full price; a model a generation old is where the discounting sits.