Niton has a short 16th century tower, with a 17th century recessed spire. It contains six bells, which have had to be hung on three tiers of two because of the small tower size, in a metal frame. Spiral stairs (behind tenor ringer) goes up to the trebles on the top tier then you climb down through the frame to the tenors which are just the other side of the ringing room ceiling.

The oldest bell is the tenor, cast by "R B", and the present 4th replaces a 1898 bell recast in 1931 when the Revd Hedley-Vicars of Niton made them up to a ring of five to commemorate the jubilee of his ordination. The treble was added by Whitechapel in 1984, inscribed "Hope Fulfilled" to compliment the tenor inscription.