Buying an Apple Watch: Which Model Is Right for You?

As an iPhone user, you might be considering an Apple Watch, but the range of options can be overwhelming. Choosing a new Apple Watch means navigating models like the SE and the Ultra, and specifications like GPS, 4G, and various sizes. Which Apple smartwatch is the right fit for your wrist and lifestyle?

As a Joybuy Product Recommendation Officer, I'm here to help you separate fact from marketing fiction. In this article, we'll break down the key considerations and highlight some popular choices for 2026, based on their specifications and intended use.

Buyer's Guide: What to Look For

Before making a decision, it's helpful to consider a few practical points. This will help you find a model that truly suits you, without paying for features you won't use.

1. GPS or GPS + Cellular (4G)?

One of the first choices you'll need to make is connectivity.

• GPS model: This model uses your iPhone's connection for internet access, notifications, and calls. Your iPhone must be nearby (usually within Bluetooth range). For most users, this is sufficient.
• GPS + Cellular (Apple Watch 4G): This model has a built-in eSIM, allowing the watch to connect to the mobile network independently. This lets you make calls, send messages, and stream music without your iPhone in your pocket. Ideal for when you go for a run and want to leave your phone at home. Keep in mind that this requires an additional mobile plan from your provider.

2. The Right Size: 40mm, 44mm, or 49mm?

The size of the watch case determines not only how the watch looks on your wrist but also the size of the screen.

• Apple Watch 40mm and 44mm: These are the standard sizes for the SE models. The Apple Watch 40mm is generally suitable for those with slimmer wrists, while the 44mm offers slightly more screen real estate.
• Apple Watch 49mm: This size is exclusive to the Apple Watch Ultra. The larger case accommodates a bigger battery and a more rugged design, aimed at extreme conditions.

3. Battery Life and Water Resistance

Think about how you'll use the Apple smartwatch.

• Battery: A standard Apple Watch SE lasts up to 18 hours with normal use, which means you'll need to charge it daily. The Apple Watch Ultra 3 offers significantly longer battery life, up to 42 hours with normal use, which is useful for multi-day activities.
• Water Resistance: Is the watch intended as an Apple sports watch for swim training? All recent models are Apple Watch waterproof, but there's a difference. The SE 3 is water-resistant to 50 metres (WR50), suitable for swimming in a pool or the ocean. The Ultra 3 is water-resistant to 100 metres (10 ATM) and, according to Apple, is even suitable for recreational diving up to 40 metres.

Our Product Recommendations

Based on specifications and various use cases, we've highlighted a few models.

Apple Watch SE 3 GPS 40mm

Why this model stands out The Apple Watch SE 3 (GPS version) is an excellent entry-level model that offers the core Apple Watch experience. According to Apple's specifications, this model now features an Always-On display, allowing you to see the time and your widgets at all times. The S10 chip ensures smooth performance.

Advantages:

• Always-On display for constant visibility.
• Fast performance thanks to the S10 chip.
• Tracks workouts, from running to swimming.
• Water-resistant to 50 metres.
• Includes Fall Detection for added safety.

Who is this watch for? This model is ideal for the everyday user looking for an affordable and complete smartwatch as an extension of their iPhone. Perfect for receiving notifications, making contactless payments, and tracking general health and fitness activities, as long as you have your iPhone with you.

View the Apple Watch SE 3 GPS 40mm

Apple Watch SE 3 GPS + Cellular 40mm

Why this model stands out This model offers all the benefits of the standard SE 3 but adds the freedom of a mobile data connection (4G). This means you are no longer dependent on your iPhone to be reachable or to stream music while exercising.

Advantages:

• All the features of the SE 3 GPS.
• Independent 4G connectivity for calls and data without an iPhone.
• Ideal for athletes who prefer to leave their phone at home.
• Fast charging is supported to quickly top up the battery.

Who is this watch for? For the active user who wants maximum freedom. Whether you're running, cycling, or just stepping out without your phone, this watch keeps you connected. It's the perfect middle ground between functionality and price for those who value independence.

View the Apple Watch SE 3 GPS + Cellular 40mm

Apple Watch Ultra 3

Why this model stands out The Apple Watch Ultra 3 is built for extremes. The 49mm titanium case is not only rugged but also surprisingly light. The specifications are aimed at serious athletes and adventurers, with significantly longer battery life and advanced sensors. According to Apple, features like a blood pressure monitor and ECG are included for health monitoring.

Advantages:

• Exceptional battery life: up to 42 hours with normal use and 72 hours in low power mode.
• Rugged titanium case and a large, bright screen.
• Water-resistant to 100 metres (10 ATM), suitable for swimming and snorkelling.
• Advanced health features like a blood pressure monitor and ECG function.
• Built-in compass and GPS for outdoor activities.

Who is this watch for? This is the watch for the serious athlete, hiker, diver, or adventurer. If you're looking for an Apple sports watch that can withstand tough conditions, provide precise metrics, and has a battery that lasts for days, the Ultra 3 is the definitive choice.

View the Apple Watch Ultra 3

Still Haven't Found What You're Looking For?

The world of Apple is vast. Are you looking for a specific Apple Watch deal, a different model, or do you want to compare the various bands and colours? More options are available that might be a better fit for your needs.

Discover our full collection and find the Apple Watch that's right for you on our apple promotional page.

Frequently Asked Questions

1. Is an Apple Watch waterproof? Yes, recent Apple Watch models are water-resistant, but the level of resistance varies. The Apple Watch SE 3 is water-resistant to 50 metres, making it suitable for surface swimming. The Apple Watch Ultra 3 is water-resistant to 100 metres and, according to the manufacturer, can be used for recreational diving up to 40 metres deep.

2. Do I need an Apple Watch with 4G (Cellular)? That depends on your usage. If you always have your iPhone with you, a GPS model is sufficient and more affordable. If you want the freedom to exercise, make calls, or listen to music without your phone, an Apple Watch 4G (Cellular) is a worthwhile investment. This does require a separate mobile plan.

3. Does an Apple Watch work with an Android phone? No, an Apple Watch is designed exclusively for the Apple ecosystem. You need an iPhone to set up and use the smartwatch. The seamless integration with iOS is one of the product's key features.