Regular NFC Sweet Spots

koolmoedee1000

Galaxy S3 seems to have a really good read even with small tags in this area

turbomaze

[quote="koolmoedee1000":2b3tgvwr]Galaxy S3 seems to have a really good read even with small tags in this area

The issue with reading tags isn't that they're large or small, but rather that the public and private NFC tags on the ring interfere with each other. The Galaxy S3 has its NFC antenna in the battery like the S4, which supposedly doesn't work very well with normal NFC rings (John said the sweet spot was ~1cm by 1cm). So this rectangle isn't a good representation of how well the rings will work with the S3.

simon5968

Hi you can find the phone sweet spot within your nfc phone hand book (user guide).

so here is the xperia sp phone:
To turn on the NFC function

From your Home screen, tap Application screen icon in Sony Smartphones .
Find and tap Settings &gt; More….
Mark the NFC checkbox.

NFC detection area
Nfc detection area on Sony Xperia™ SP
The location of the NFC detection area is not the same on all devices. When sharing data with another device using NFC, refer to the User guide of the other device for more information.

simon5968

Phone: Sony Xperia Z Ultra

simon5968

Phone: Sony Xperia M

simon5968

Phone: Sony Xperia T

simon5968

Phone: Sony Xperia L

simon5968

Phone: Sony Xperia S

simon5968

Phone: Sony Xperia P

simon5968

Phone: Sony Xperia Sola

Andreas

Found HTC One sweet Spot over at [url=http://www.htc.com/www/support/htc-one/howto/365470.html:1p7jj8k0]HTC Support Page[/url:1p7jj8k0]

[b:1p7jj8k0]Edit:[/b:1p7jj8k0] HTC changed their page around, updated image and url

Lokki

Nokia N9
This phone has excellent NFC readability with a huge sweet spot at the top rear of the phone.
Both Alpha and Normal rings are very easily readable, so easy in fact that I keep doing it by accident.

Lokki

Nexus 5

I've found that best effect is around here, with the ring inlay horizontal for the Normal ring.

(It does have a case, around 5mm thick, and has no issues with readability whatsoever)

paulguy

I posted this picture in another thread, but just so it's in the right category...

Verizon (Quallcomm Snapdragon) Samsung Galaxy Note 3 (N900V), regular ring size 7.

It's pretty quirky and can be difficult and may fail to read once or twice occasionally but once you get used to it it's pretty easy and reliable for me.

Lokki

HTC One X

An awful phone with major screen issues. If you really must have one then the bullseye marks the sweet spot. Best used with inlays horizontal to the phone (stick your finger straight up the back of it).

victor

BlackBerry Z10. Very tiny sweetspot, but does work with normal Stealth Bomber ring. Can also use the stock Smart Tags app to write things to it.

kpjimmy

@Lokki I have the spigen neo hybrid and it doesn't read the ring at all. It reads all my other tags and the inlay without issue.

Ybcthanerd

@paulguy but like it says this is verizon, wut about att sprint and tmobile, cause i can tell u now this is inaccurate for t-mobile its a tad bit higher and further to tha left more towards tha middle of tha phone

Lokki

@kpjimmy hi, sorry about the late reply - I must have missed your message at some point.
If possible try to find your sweet spot without the case, then mark the back of the case where the spot will be. Try using your ring there and see how it goes. If you get a partial read sound then you may be able to thin down that portion of the case a little to make it work (some others have made small ring sized holes in the cases to improve reading and also ring locating, it makes it so much easier to be consistent when there's a physical spot to aim for).

Lokki

@Ybcthanerd mileage can vary somewhat between phones, this can cause those odd little differences in positioning.