i Phone warning
Just picked this up from Martin Lewis's email.
"The issue is very simple but possibly very costly.The new feature in question is called 'Wi-Fi Assist' and is available on all iPhones that support iOS 9, barring the iPhone 4s.
The Wi-Fi Assist settings clearly state it will "automatically use mobile data when Wi-Fi connectivity is poor". But if you have iOS 9 and do nothing, the default setting is that this function is switched on.
This will use your data allowance much quicker than you may expect, and in the extreme, could mean you have to pay for extra data if you end up above your limit and want to continue using more. Vodafone, for example, allows you to continue using it at £6.50 per 500MB.
Apple says Wi-Fi Assist isn't available if you're using data roaming, so you shouldn't be affected by this when using your phone abroad. That said, it's always best to turn off data roaming when abroad anyway to avoid racking up costly charges, and to instead use Wi-Fi. See our Data Roaming guide for more on this."
I am a man of simple tastes, I am quite satisfied with the best. (Oscar Wilde)