Harper Grove Cell Phone Internal Antenna Signal Reception Booster, 10 Pack, for Apple iPhone SE 4 4S 5 5C 5S 6 6S 7 7S 8 8+ X XS XR XS MAX

Completely ineffective. Read reviews and got suckered by people who are clearly in the profit path of this. They don’t work. They don’t work even 1%. Followed some guy who wrote “was only $4 so what did I have to lose”. You lost your $4, just like I did. These may have helped on Nokia flip phones back in the 90’s but you could put hvac aluminum tape on the back of your phone and get the same result.It is shameful that Amazon doesn’t feel a sense of ethics to weed out scams.

I have to admit, I was very skeptical about this. However, not wanting to drop $150 - $300 dollars on a signal booster/repeater, I figured what's the worst that could happen at $3 for a ten pack. And after a little research, these apparently have been a thing since the 90's anyway.These actually -amazingly- work. I looked up where the iPhone X antenna is internally and stuck these on the back of the phone externally, two near the antenna and one centrally. The phone has yet to drop it's signal in our rooms with signal issues, save for one where there is no signal at all. This makes sense as these obviously need to be hitting something signal-wise. But that room isn't worth getting a signal booster anyway, so these have worked great for the rooms we usually use anyway and in the end saved me a bunch.

Well done for forest and up north in my camp. My iPhone is work ok so alert weather.

Though my return was accepted, I shipped them back but they came back as return to the sender/unable to forward I was refunded my money

It does not work. I put 7 on my Samsung S 8 Active, it made no change.

Easy to use.

This works great I purchase the 10 pack I noticed a huge Improvement.Before I used to only be able to play 144p resolution on YouTube in my house. When I added six stickers it jumped all the way up to 720p, when I added all 10 I was able to get 1080p. Everything just loads much faster I highly recommended it and it's incredibly affordable at only $3. I have a note 8 and I was able to stick all 10 of these stickers on the back of my phone.I will definitely purchase another pack and add another 10 to my phone case to boost my reception even more.

iPhone 8 overheated with 3 of these stuck to the back, and the battery drained quickly. Not a good idea to put metal stickers on a high tech device with that already has a built-in antennae. Oh, and they did not increase my signal strenght.