Samsung Galaxy Watch 3 41mm (LTE, Gold)

Does the LTE version work with all UK mobile networks?

The LTE model supports major UK carriers including EE, O2, Vodafone and Three. You'll need to add the watch to your existing mobile plan or set up a separate data plan. Most carriers charge around £5-10 monthly for smartwatch connectivity. Contact your provider to confirm compatibility and pricing before purchase.

How accurate is the ECG feature and can doctors use the results?

The ECG sensor meets medical device standards and can detect atrial fibrillation and other irregular heart rhythms. The Samsung Health Monitor app generates PDF reports that healthcare professionals can review. However, this isn't a replacement for professional medical equipment and shouldn't be used for diagnosing serious conditions without doctor consultation.

What's the difference between 41mm and 45mm sizes?

The 41mm version suits smaller wrists (13-20cm circumference) and weighs 168g, while the 45mm model fits larger wrists (14-22cm) and weighs 201g. Both offer identical features and battery life. The 41mm provides a more comfortable fit for people with petite wrists and looks less bulky during daily wear.

Can I use Samsung Pay without my phone nearby?

Yes, Samsung Pay works independently on the LTE model once you've set up your payment cards. The watch stores encrypted payment information locally, so you can make contactless payments at any terminal that accepts card payments. This works even when your phone is at home or has a dead battery.

How long does the battery actually last with LTE enabled?

With LTE active, expect 24-30 hours of typical use including notifications, fitness tracking and occasional calls. Heavy usage with continuous GPS, music streaming and frequent calls reduces this to 18-20 hours. Turning off LTE and using Bluetooth-only mode extends battery life to 2-3 days depending on usage patterns.

Is the watch waterproof for swimming and showering?

The watch has 5ATM water resistance plus IP68 rating, making it suitable for swimming in pools and shallow water up to 50 metres depth. You can shower and wash hands while wearing it. However, avoid hot water, steam rooms, saunas and high-pressure water activities as these can damage the seals.

What fitness activities does it track automatically?

The watch automatically detects running, walking, cycling, swimming, rowing, elliptical training and dynamic workouts. It starts recording when it senses consistent movement patterns for each activity. Manual workout modes include over 40 additional exercises like yoga, strength training and outdoor activities with specific metrics for each type.

Do I need a Samsung phone to use all features?

While the watch works with any Android phone, Samsung Galaxy devices unlock additional features like wireless charging from your phone, enhanced Samsung Health integration and seamless ecosystem connectivity. iPhone users can use basic features but miss out on many advanced functions and app compatibility.