Photo of Side Pocket on back right side panel containing an iPhone 7. Many smartphones will fit in the pocket even if they are larger due to the side-to-side stretch in the fabric. Very large phones usually don't fit comfortably. Phone slides into the outside pocket. The covered pocket (lower arrow) is secure and separate from the phone - works great for key/ID/credit card. (Some small phones without a case will also fit in this covered portion). Approx. pocket dimensions - 3” across the top, 3-1/2 at the bottom, and 5-1/4” high.