Comparing a Tile Slim and a Lapa on an Android (Moto X):Both trackers have the same basic features: ring the tracker or see its last known location on a map, ring your phone from the tracker by pressing it, pay for the hardware but no ongoing fees for the app. After a few weeks both trackers batteries are doing fine, but the Lapa's replaceable battery is a plus (Tile advertizes 1 year battery life). Both apps / both trackers play pretty much the same little melody. They may reduce phone battery life a little, but not drastically; and glancing at Android's battery usage history for today, Tile is on the list at 3% (below Facebook and Screen at about 5%), but Lapa is not listed, presumably meaning it used < 1% (the smallest value on the list).The Tile Slim is a nice form factor (the Lapa is too thick to put inside a wallet), but has poor range. Standing in the same room, maybe 8'-12' away, the brand new Tile would not ring from the phone. (The phone kept saying it was nearby, but when trying to ring the Tile it would revert to searching.)By comparison the Lapa responds quickly and reliably; in a 4-room apartment its range has been fine. The button on the Lapa (to ring the phone) does not have tactile feedback, but there's a little white light that turns on which does let you know you've hit the button. The Lapa app also has some nice features I didn't see on Tile: you can set an alert when you leave an item behind, and you can mark an item as lost to benefit from crowd-sourced findings (haven't used that yet).

not very loud. hard to hear, (unlike the Tile 2nd generation) if its in a wallet or covered in ANY way

Awesome concept, not the best execution. Time thin is still very thick. It's about four credit cards thick (if they're pushed together). If you sliced the thickness in half, it would be perfect. I use a slim wallet and this makes it bulge, a lot. And sitting on the wallet in my back pocket is now uncomfortable. But I would rather have discomfort than a missing wallet.I also have two other tiles, and I love how I can track everything so easily. I just wish they made the thin version thinner. Still too bulky.I added a photo to show the tile versus three credit cards. Add one more and it's the thickness of the thin tile.

5 stars because I need this thing not to go nuts losing my life to losing things. 1 star because it needs to be louder

Every time I sit, the tile rings my phone

LOL - I'm sure it's OK, but I lost it before I got the phone synced. If I find it I'll write a better review!

Well unless you have app running 24/7 it doesn't really do well. App drains phone even with battery saver active.

Works great but disappointed life expectancy of product is one year. No option to replace battery you must replace entire Tile.

Excillent when within 30 feet.

Doesnt work as well as expected. Difficult to use as a family with multiple apps between myself and the wife as can only sync with one device at a time which makes the family car keys relocatable only from one device.