This refurbished Apple Watch Series 4 GPS + Cellular Space Grey Alumini 40MM Black Sport Band comes in a refurbished condition, with a grade of Good. Each of our certified refurbished Apple Watch Series 4 smart watches comes with a free 12-month warranty as standard, along with a 14-day money back guarantee, free UK delivery and flexible payment options through PayPal Credit & Klarna. Our reconditioned Watch Series 4 smart watches pass over 70 tests and checks through our extensive in-house refurbishment process, to ensure the second hand Watch Series 4 you buy is of the highest quality - for a fraction of its original price. This used Apple Watch Series 4 in Black Sport Band comes complete with a free charging cable. GPS & Cellular, Black Sport Band, Good condition, 2nd hand/used/refurbished, fully tested battery. Shop our range of refurbished/restored Apple Watch Series 4 GPS + Cellular Space Grey Alumini 40MM Black Sport Band smart watches & order by 10pm to qualify for next day delivery - All new. For a better you.Introducing Apple Watch Series 4. Fundamentally redesigned and re-engineered to help you stay even more active, healthy, and connectedAll-New Design Not just evolved, transformed.The largest Apple Watch display yet. New electrical heart sensor. Re-engineered Digital Crown with haptic feedback. Entirely familiar, yet completely new, Apple Watch Series 4 resets the standard for what a watch can be.Proactive Health Monitor Part guardian, part guru.ECG on your wrist. Low and high heart rate notifications. Fall detection and Emergency SOS. New Breathe watch faces. It\'s designed to improve your health every day and powerful enough to help protect it.Ultimate Workout Partner Workouts that work harder.Automatic workout detection. New yoga and hiking workouts. Advanced features for runners like cadence and pace alerts. See up to five metrics at a glance as you precisely track all your favorite ways to train.Comprehensive Activity Tracker Made to motivate.New head-to-head competitions. Activity sharing with friends. Personalized coaching. Monthly challenges. Achievement awards. Get all the motivation you need to close your Activity rings every day.