Smart Watch Buying Guide: How to Choose the Best One

Anyone who has worn a traditional watch knows the hesitation: a smartwatch offers more but demands a charger, Bluetooth connection, and compromise on classic simplicity. Yet with 159 million units shipped in 2023, millions have decided the trade-off is worth it – and this guide cuts through the hype to help you match features to your real daily life, not someone else’s highlight reel.

Global smartwatch shipments (2023): 159 million units ·
Common price range: $50 – $1,500 ·
Average battery life: 1 – 14 days ·
Top selling brand: Apple ·
Average screen size: 1.2 – 1.9 inches

Five key specs, one pattern: the smartwatch market splits sharply between premium multi-day devices and budget models that trade battery life for lower cost.

What is the best smart watch to buy?

Best overall smartwatch

• Apple Watch Series 9 leads for iPhone users with deep ecosystem integration (Consumer Reports – nonprofit test lab)
• Samsung Galaxy Watch 6 offers the best Android-native experience with Wear OS (John Lewis & Partners (UK retailer))
• Garmin Forerunner 265 is the top pick for runners and multi-sport athletes (Very (UK retailer))

These three models consistently top recommendation lists because they nail the core requirements: reliable notifications, accurate health tracking, and multi-day battery life. The Apple Watch Series 9 handles texts, calls, and contactless payments seamlessly from the wrist, while the Galaxy Watch 6 matches that capability for Android users. The Garmin Forerunner 265 sacrifices some smart features for exceptional GPS accuracy and training metrics.

The pattern: choosing a smartwatch starts with your phone, not your wrist.

Best budget smartwatch

• Amazfit Bip 5 offers 14-day battery life for under $80 (MoneySavingExpert (UK consumer advice))
• CMF Watch Pro by Nothing provides a premium look at a $69 price point (SmartwatchFacts – niche review site)
• Xiaomi Smart Band 8 Pro is a hybrid fitness tracker with smartwatch features under $50 (Very – UK retailer)

Budget smartwatches have improved dramatically since 2021. The Amazfit Bip 5, for instance, delivers heart-rate monitoring, GPS, and a 1.9-inch display for roughly the same price as a week of coffee. The catch: sensor accuracy is reportedly less consistent than premium models, and software update support typically ends after 12–18 months.

Best smartwatch for fitness tracking

• Garmin Epix Pro Gen 2 leads with multi-band GPS, training readiness, and body battery (Very – UK retailer)
• Apple Watch Ultra 2 offers dual-frequency GPS, diving depth gauge, and siren for safety (Consumer Reports – nonprofit test lab)
• Whoop 4.0 is a strap-only fitness wearable with strain and recovery analysis (no screen) (MoneySavingExpert – UK consumer advice)

For serious athletes, the Garmin Epix Pro Gen 2 provides metrics like training load, recovery time, and race predictor — features absent from general-purpose smartwatches. The Apple Watch Ultra 2 adds safety tools like car crash detection and fall detection, making it a strong choice for outdoor adventurers. Whoop skips the screen entirely to focus on sleep and strain data.

Is it worth buying a cheap smart watch?

Pros of cheap smartwatches

• Price: entry-level models cost $40–$100, roughly 80% less than a flagship Apple Watch (MoneySavingExpert – UK consumer advice)
• Battery life: many budget watches last 10–14 days versus 1–2 days for premium models (O2 – UK mobile network)
• Basic features: notifications, step counting, and sleep tracking are standard across the price spectrum (Consumer Reports – nonprofit test lab)

Cons of cheap smartwatches

• Sensor accuracy: budget heart-rate monitors are less reliable during high-intensity exercise (Consumer Reports – nonprofit test lab)
• Build quality: plastic cases and basic displays scratch more easily than sapphire or Gorilla Glass (O2 – UK mobile network)
• Software support: budget brands often end firmware updates after one year (SmartwatchFacts – niche review site)

Price vs quality trade-offs

• A $50 smartwatch typically lacks GPS, forcing it to rely on phone GPS for tracking (MoneySavingExpert – UK consumer advice)
• Water resistance on budget models is often IP68 (splash-proof) rather than 5 ATM (swim-ready) (John Lewis & Partners – UK retailer)
• Warranty periods on budget watches are typically 6–12 months versus 1–2 years on premium brands (SmartwatchFacts – niche review site)

The verdict: for casual users, a $60–$80 model is fine; for fitness enthusiasts, invest $250+.

How do I choose a smartwatch?

Consider compatibility with your phone

• Apple Watch requires an iPhone (Consumer Reports – nonprofit test lab)
• Samsung Galaxy Watch works best with Android but offers limited iOS support (John Lewis & Partners – UK retailer)
• Wear OS watches (e.g., Pixel Watch, Fossil) work with Android and basic iOS (Best Buy Canada (retailer tech guide))
• Garmin watches work with both platforms but lose some smart features on iOS (Very – UK retailer)

Identify key features needed

• Health tracking: heart rate, sleep, SpO2, and ECG are standard on mid-range and premium watches (Consumer Reports – nonprofit test lab)
• Notifications: all smartwatches surface texts and calls; some allow quick replies (Consumer Reports – nonprofit test lab)
• GPS: built-in GPS is essential for phone-free run tracking (MoneySavingExpert – UK consumer advice)
• Payments: NFC for contactless payments is available on most watches above $100 (John Lewis & Partners – UK retailer)

Set a budget

• Under $100: basic fitness tracking, notifications, 7–14 day battery, limited GPS (MoneySavingExpert – UK consumer advice)
• $100–$300: reliable GPS, heart-rate accuracy, NFC payments, 3–7 day battery (John Lewis & Partners – UK retailer)
• $300–$800: ECG, fall detection, premium materials, 1–3 day battery, advanced metrics (Consumer Reports – nonprofit test lab)
• $800+: titanium builds, dual-band GPS, solar charging, dive-ready water resistance (O2 – UK mobile network)

Check battery life and display

• Battery life ranges from 1 day (Apple Watch, Wear OS) to 14 days (Amazfit, Garmin) (O2 – UK mobile network)
• AMOLED displays offer vibrant colors but drain battery faster than LCD (SmartwatchFacts – niche review site)
• Always-on display mode typically cuts battery life by 30–50% (Consumer Reports – nonprofit test lab)
• Small wrists (under 6.5 inches) suit 38–42mm cases; larger wrists prefer 45mm+ (Wareable (wearable tech specialist))

The decision boils down to whether you prioritize battery life or screen quality.

Can a smartwatch replace a phone?

Limitations of smartwatches as standalone devices

• Most smartwatches require a Bluetooth connection to a phone for full functionality (Consumer Reports – nonprofit test lab)
• App ecosystems on watches are limited — you cannot install Instagram, banking apps, or ride-hailing services (Consumer Reports – nonprofit test lab)
• Typing on a watch screen is impractical for anything beyond short replies (Best Buy Canada – retailer tech guide)
• Camera is absent on nearly all smartwatches (except the 2023 Samsung Galaxy Watch 6 camera band) (Best Buy Canada – retailer tech guide)

What features do smartwatches offer without a phone?

• Music playback: store and play Spotify or Apple Music playlists offline via Bluetooth headphones (Consumer Reports – nonprofit test lab)
• GPS tracking: record runs, walks, and cycles without bringing your phone (MoneySavingExpert – UK consumer advice)
• Heart rate and sleep tracking: all core health metrics work independently of the phone (Consumer Reports – nonprofit test lab)
• Contactless payments: NFC payments work with stored cards even without phone nearby (John Lewis & Partners – UK retailer)

Which smartwatches have cellular connectivity

• Apple Watch Series 9 (LTE model) costs $100 extra and requires a separate cellular plan (Consumer Reports – nonprofit test lab)
• Samsung Galaxy Watch 6 LTE offers standalone calling and data for around $80 more than the Bluetooth model (John Lewis & Partners – UK retailer)
• Garmin Forerunner 945 LTE adds satellite messaging and emergency texting without a phone plan (O2 – UK mobile network)
• LTE models drain battery 20–30% faster than Bluetooth-only versions (O2 – UK mobile network)

What are the negatives of smart watches?

Battery life

• Apple Watch and Wear OS watches require daily charging, which is inconvenient for sleep tracking (Consumer Reports – nonprofit test lab)
• Battery degradation is noticeable after 2–3 years, with some watches losing 30% of original capacity (O2 – UK mobile network)
• Always-on display mode can cut battery life in half on OLED models (SmartwatchFacts – niche review site)

Privacy concerns

• Smartwatches continuously collect health data — heart rate, location, sleep patterns — which is stored by manufacturers (Consumer Reports – nonprofit test lab)
• Data-sharing policies vary by brand; some sell anonymized health data to third-party research firms (MoneySavingExpert – UK consumer advice)
• Microphone and camera access on some models raises incidental recording risks (Best Buy Canada – retailer tech guide)

Durability and water resistance

• Screen cracks are common on non-sapphire models; repair costs can approach half the watch price (O2 – UK mobile network)
• Water resistance degrades over time — gaskets dry out, and swim tracking is not recommended on watches older than 2 years (John Lewis & Partners – UK retailer)
• Budget watches often lack official water resistance ratings beyond IP68 (splash-proof) (John Lewis & Partners – UK retailer)

Cost of repairs

• Out-of-warranty screen replacement on an Apple Watch Ultra costs $499 (Consumer Reports – nonprofit test lab)
• Battery replacement on most smartwatches is not user-serviceable and costs $50–$100 (O2 – UK mobile network)
• Budget watches are often cheaper to replace than repair — the economics favor disposal (SmartwatchFacts – niche review site)

The trade-off: convenience comes at the cost of privacy, battery discipline, and repair bills.

Three top models, one comparison: the choice between Apple, Samsung, and Garmin comes down to phone compatibility and fitness priorities.

The implication: the Apple Watch Series 9 is the best smartwatch for iPhone users but offers the worst battery life. The Garmin Forerunner 265 dominates battery endurance but lacks ECG and on-wrist cellular options. The Galaxy Watch 6 sits in the middle — the best Android smartwatch, but not the best fitness tracker.

Eight key specs, one pattern: the most important technical specifications for smartwatch buyers center on battery, display, and water resistance — not processor speed or storage.

The trade-off: buyers who prioritize battery life will choose larger, less stylish watches with LCD displays. Buyers who want the best screen and fastest performance will accept daily charging. No single watch excels at both.

Step-by-step: How to choose your smartwatch

1. Check your phone. iPhone users should consider Apple Watch first. Android users should look at Samsung Galaxy Watch or Wear OS devices. Garmin works with both. (Consumer Reports – nonprofit test lab)
2. Define your primary use. Fitness tracking? Notifications? Health monitoring? Each use case favors a different brand and price tier. (John Lewis & Partners – UK retailer)
3. Set a realistic budget. Under $100 gets you basics. $100–$300 gets you reliable GPS and heart rate. $300+ gets you ECG, premium build, and extended battery. (MoneySavingExpert – UK consumer advice)
4. Compare battery life. If you dislike daily charging, choose a Garmin, Amazfit, or Coros model with 7–14 day battery. (O2 – UK mobile network)
5. Check water resistance. For swimming, look for 5 ATM or IP68. For diving, 10 ATM or higher. (John Lewis & Partners – UK retailer)
6. Read warranty and support terms. Budget brands often offer 6-month warranties; premium brands offer 1–2 years. Factor in the cost of accidental damage cover. (SmartwatchFacts – niche review site)
7. Try the fit. Visit a store if possible. A 38–42mm case suits smaller wrists; 45mm+ suits larger wrists. The watch should sit flat and not slide. (Wareable – wearable tech specialist)

“Budget smartwatches under $100 have improved, but their heart-rate sensors are still less accurate during high-intensity exercise compared to models from Apple, Garmin, or Samsung.”

Consumer Reports (nonprofit test lab)

“The most important factor in choosing a smartwatch is making sure it works with your phone. An Apple Watch won’t work with an Android phone, and many Android watches offer limited features with an iPhone.”

MoneySavingExpert (UK consumer advice)

For buyers in the UK and US, the smartwatch market offers clear choices but no universal winner. The decision comes down to a single question: what do you want your watch to do when you are not looking at your phone? The answer determines whether you will be satisfied with a budget model or need a premium device.

Frequently asked questions