Most budget smartwatch reviews only talk about long battery life or how many sports modes they have. But there are several small features that actually make daily life easier. Take the Haylou Watch 3 for example—this watch has three underrated features that are almost never mentioned: calculator, sunrise/sunset info, and find phone. If you already own one or are considering buying it, this article will thoroughly explore three hidden features of the Haylou Watch 3 that can make your watch more useful.

Haylou Watch 3 Quick Specs

Why Are Haylou Watch 3 Hidden Features Worth Noting?

At the $20 price point, what’s usually sold is notifications, step counter, and heart rate sensor. But the Haylou Watch 3 actually sneaks in several small features that are rarely mentioned in brochures or mainstream reviews. These features might sound trivial, but when you need them—like when you want to calculate quickly without opening your phone, want to know what time golden hour is for photos, or panic looking for your phone that’s somewhere—that’s when you feel their usefulness.

After using it for a week, there are three hidden features I use most often that genuinely add value to this watch.

Three Most Useful Hidden Features

Calculator: Quick Calculations on Your Wrist

This is one of the most practical hidden features of the Haylou Watch 3. The calculator can be accessed through the Tools menu. The interface is very simple: just number buttons 0-9 and basic operations (add, subtract, multiply, divide). No scientific functions, but it’s enough for calculating shopping, splitting bills, or quick conversions.

How to access the Haylou Watch 3 calculator:

1. Swipe the main screen left or right to open the app menu.
2. Look for the Tools icon (usually a box with a gear).
3. Inside Tools, select Calculator.

The performance is responsive, no annoying lag. The button size is also large enough for fingers, even though the screen is “only” 1.85 inches. The advantage: you don’t need to bother taking out your phone for simple calculations. The downside: there’s no calculation history, so make sure the result is correct before exiting the app.

Sunrise & Sunset: Helps Outdoor Activities

The sunrise/sunset feature shows what time the sun rises and sets based on your location. Very useful for those who like morning runs, golden hour photo hunting, or just want to know when it starts getting dark.

How to enable sunrise sunset on Haylou Watch 3:

• This feature usually appears automatically after the smartwatch connects to your phone and gets location data from the Halo Fun app.
• Can be accessed through the Weather menu on the watch. If it doesn’t appear, make sure location permissions in the app are active.

During a week of testing, the sunrise/sunset data was accurate, synced with weather services on the phone. The display on the AMOLED screen is clear, with 24-hour format. What’s nice is that this feature doesn’t need a continuous internet connection because the data is already downloaded during synchronization.

Find Phone: Locate Your Lost Phone

Ever panicked because you forgot where you put your phone? The Find Phone feature on the Haylou Watch 3 can be a lifesaver. With one touch, your phone will ring loudly even if it’s on silent mode (depending on phone settings too).

How to use find phone on Haylou Watch 3:

1. Swipe the main screen up to open the quick control panel or enter the Tools menu.
2. Look for the Find Phone icon (usually a phone image with waves).
3. Press it, and your phone will immediately ring.

Its effectiveness depends on Bluetooth range. From experience, this feature works well within a radius of about 10 meters (without thick barriers). If the phone is left inside the house, it’s usually immediately audible. But if the phone is on a different floor or outside Bluetooth range, it won’t work. Make sure the Bluetooth connection is stable.

Other Main Advantages That Support

Besides the three hidden features mentioned, the Haylou Watch 3 has several advantages that make it worth considering:

• 1.85-inch AMOLED display: Color quality is good indoors and outdoors, although there’s no auto brightness.
• 400 mAh battery: Manufacturer claims 15 days; in practice with AOD active, battery life drops but is still better than similarly priced smartwatches.
• Up to 200 free watch faces: Available in the Halo Fun app, can be changed anytime without paying.
• Accurate pedometer: Doesn’t count steps when the device is in a pocket or bag, only when worn on the wrist.
• Bluetooth call: Can answer calls directly from the watch, compatible with WhatsApp calls on some phones (tested on Samsung A56).

Disadvantages to Consider

No product is perfect at the $20 price point. The Haylou Watch 3 has some disadvantages you need to know:

• No built-in GPS: All outdoor sports tracking relies on phone GPS. If you run without bringing your phone, route data won’t be recorded.
• Limited AOD: Always-on display is only available in one digital model, doesn’t follow analog watch faces.
• Remote camera delay: When taking photos from a distance via smartwatch, there’s a few-second delay.
• Halo Fun app only supports one device: If you want to switch to another smartwatch, you have to uninstall the app first.
• Low water resistance (1 ATM): Only splash-resistant, not for swimming or showering.

Conclusion

Who It’s Suitable For & Not Suitable For

Suitable for: You who want a cheap smartwatch with an AMOLED display, long battery life, and complete basic features. If you like small features like calculator, sunrise/sunset, and find phone, the Haylou Watch 3 gives extra value at no additional cost.

Not suitable for: Runners who need standalone GPS, swimmers, or users who want auto brightness and AOD with many variations.

TL;DR

Haylou Watch 3 is an entry-level smartwatch with three useful hidden features: calculator for quick calculations, sunrise/sunset for outdoor activities, and find phone to locate your phone. AMOLED display, large battery, and free watch faces are the main selling points. Main disadvantages: no GPS, low water resistance, and limited AOD.

Verdict: Worth Buying or Not?

Worth buying if your budget is limited and the main features you need are notifications, basic health tracking, plus a good display. The three hidden features discussed are just bonuses, not the main reason to buy. But the presence of these features makes this smartwatch feel more worth it in its class.

Alternatives

If features like built-in GPS or higher water resistance are priorities, consider:

• Xiaomi Mi Band 7 – slightly cheaper price, AMOLED display, has connected GPS (similar), 5 ATM water resistance.
• Amazfit Bip U Pro – priced around $27, has built-in GPS, but the display isn’t AMOLED.

FAQ

1. Does the sunrise sunset feature on Haylou Watch 3 need internet?

Not always. Location data is taken during synchronization with the Halo Fun app. As long as the data is downloaded, the feature can work offline.

2. Why doesn’t the calculator feature appear on Haylou Watch 3?

Make sure the watch firmware is updated to the latest version through the Halo Fun app. If it still doesn’t appear, the feature might be hidden in the Tools menu – look for the “Calculator” or “Calc” icon.

3. What’s the maximum range for the find phone feature?

Effective within a radius of about 10 meters without thick barriers. Walls or iron doors can reduce range.

4. Can Haylou Watch 3 control the phone camera?

Yes, through the remote camera feature in the Halo Fun app. But there’s a delay when taking photos.

5. How to set up sunrise sunset to be accurate?

Make sure location permissions in the Halo Fun app are enabled (both when in use and in background). Sync weather data regularly.

Source: Fredy Us