Nowadays staying connected is a must for most travelers and you will be able to use your cellphone in a decent way in Bahamas. Just do not expect the same reliability as in the US. You may have to move a little bit in the house or out of the house to find a good signal. We suggest that you download a Wi-Fi enabled app such as WhatsApp so that you have a full guarantee to stay connected even while at the beach . WhatsApp does not function all the time in most instances you will need to be connected to the Wi-Fi. Harbour Island is very well connected and the largest majority of hotels, restaurants, vacation rentals are properly equipped. You will also notice that your batteries get depleted rather rapidly.
It is advised to check that before traveling you check with your provider to make sure that your roaming rate is not excessive . Most US carriers have a special package to let you connect on the cheap. All major carriers from the US or Europe offer a good cell signal.