Life insurance provider John Hancock has announced that new and existing members of its Vitality program can receive an Apple Watch Series 3 with GPS only for an initial payment of just $25 plus tax. Additional fees apply for customers who choose a cellular model or other more expensive models.

The cost of the Apple Watch is actually split up into 24 monthly payments, which can be paid off by walking, running, biking, swimming, or completing various other exercises. Vitality members must earn at least 500 fitness-related Vitality Points per month over two years to avoid owing any of the instalments.

By connecting the Vitality Today app to Apple's Health app and confirming data sharing, customers can earn Vitality Points for Light, Standard, and Advanced Workouts towards the monthly goal. Customers can share steps measured by their iPhone or Apple Watch, as well as active calories from the Apple Watch.

The Vitality program is available with select John Hancock life insurance policies in the United States. The free Apple Watch Series 3 offer will be available starting November 6 everywhere except New York.

John Hancock, owned by Manulife Financial, first started offering Apple Watches to a limited number of members last year. About half of the people who received the device achieved their monthly goals and did not pay for the device, John Hancock senior vice president Brooks Tingle told CNBC.

John Hancock is the first life insurance provider to offer the Apple Watch at a discounted rate to its members. Health insurance provider Aetna offers a similar program to its employees, and may expand it to 23 million customers soon.