Yes, you can change the fonts size in Samsung Metro XL.
You can store up to 1000 contacts in Metro XL. In addition, you can store up to 250 contacts in each of your sim card. So, if you are using 2 sim cards, in total you can store up to 1500 contacts.
Samsung Metro XL weighs around 105 grams.
Yes, you will get a pair of headphones in the box as standard accessories.
Yes, Metro XL comes with pre-installed Facebook App.