Xiaomi Watch Where to Call: Model Choice and Communication Setup

The modern rhythm of life dictates its rules, forcing us to be connected every minute, even when our hands are busy or our smartphone is far away. Which is why a smart watch with support for calls has ceased to be just a fashion accessory and has become a necessary communication tool. In the ecosystem of Xiaomi and its sub-brands, such as Redmi and Amazfit, you can find devices of different price segments that support full-fledged telephone communication.

However, not all gadgets from the electronics store can work with the SIM-Many users mistakenly believe that any activity tracker will allow you to answer an incoming call with a voice, rather than just read the notification. In this article, we will discuss in detail what kind of Xiaomi watches are equipped with a communication module, how to set them up correctly and what difficulties you may encounter during operation.

The difference between eSIM-enabled models, a physical nano-SIM slot, and devices that work exclusively in conjunction with a smartphone can be critical. Understanding these technical nuances will help you not overpay for unnecessary features or, conversely, not disappoint in buying, finding the lack of a microphone. Let's dive into the world of wearable electronics, where your wrist becomes a full-fledged phone.

Types of connection and communication technologies in hours

Before choosing a particular model, you need to clearly understand how the device will provide voice communication. There are three main scenarios, and each of them has its own technical limitations and advantages. Bluetooth calls are the most common option, where the watch acts as a wireless headset, broadcasting sound from the phone, in which case the smartphone must be within a radius of 10 meters, otherwise the connection will be interrupted.

The second option is a watch with support. 4G/LTE and a physical slot for SIM-These devices, often called the wrist phone, are completely autonomous. You can leave your phone at home, go for a run, and all the calls and messages will come directly to the clock. The third type is support for eSIM technology, which is still less common in the budget segment of Xiaomi, but is gradually gaining popularity in flagship lines.

It's important to distinguish between models that simply display the caller's name and those that have a built-in speaker and microphone. Even if the specifications indicate "calling support," always check for a conversational speaker. Some trackers only allow you to reset a call or send a pre-prepared one. SMS-A message that full communication is not enough.

⚠️ Note: When buying a watch with support SIM-Be sure to check Bands, some Chinese versions of the devices may not support bands. LTE, used by operators in your area, which will result in a lack of 4G and only work in mode 2G.

NFC is also often mentioned in the context of communications, but it's for contactless payment and fast synchronization, not voice. So having NFC doesn't guarantee the ability to make calls without a phone. Cellular module is critical for battery life.

Xiaomi and Redmi models with call support

Xiaomi's range of wearables is huge and difficult to navigate, and we've selected the most relevant models that allow you to make and receive calls, and the leader in the segment of children's and adolescent watches is the Xiaomi Kids Watch series, which was originally created as a means of communication for a child with parents.

For adult users, the company launches the Xiaomi Watch line (not to be confused with the Mi Band), which is often based on the Wear OS operating system or its modification HyperOS. These devices look like classic smart watches with a round screen and a metal body. They support Bluetooth calls, and some older models are equipped with an LTE module.

Redmi Watch models are usually sport-oriented and basic notifications, but newer versions (such as Redmi Watch 3 Active or more recent releases) are already getting support for Bluetooth calls with high sound quality thanks to improved noise reduction algorithms.

When choosing a model, look at the firmware version. Global Version often has reduced call functionality compared to Chinese counterparts due to certification restrictions in different countries. For example, the function of recording a conversation or using certain codecs can be blocked software.

Instructions: how to insert SIM-clock-card

If you have chosen a model that supports physical SIM-The next step is to install the card, and this process requires care, because slots in compact devices often have a specific design. SIM-The card has a Nano-SIM format and the request is disabled PIN-code.

To extract the tray, you usually use a special paper clip that comes with the kit, or a thin needle. Find a hole on the case (often hidden under a silicone plug to protect against moisture) and press until you click. After removing the tray, set the map downwards, observing the shape of the cutout.

Once you have installed the card, turn on the device. Go to the settings menu, select Network and Internet or Mobile. If the SIM card is correctly identified, the status bar will display a signal level icon. Some models require manual profile activation via the Xiaomi Wear or Zepp Life app.

⚠️ Warning: Never try to insert SIM-card at hours that do not support this format, even if it physically enters the slot, this can lead to short circuit and irreversible damage to the motherboard of the device.

If the network doesn't show up after the reboot, check the APN settings. Often, automatic settings don't apply and you have to manually enter them by taking data from your mobile carrier's website. Proper APN settings are key to mobile internet and MMS on your watch.

Bluetooth Calls and Synchronization

For models that don’t have their own SIM, it’s critical to have the right Bluetooth connection setup, just plugging in a smartphone’s menu clock isn’t enough to transmit sound, allowing access to contacts and call logs, and activating the Hands-Free Profile (HFP) profile.

The pairing process usually begins with the installation of a proprietary app. For most new devices, it is Xiaomi Wear (formerly Mi Wearable), for older devices, Mi Fit, and for the Amazfit ecosystem, Zepp. QR-code and confirm the pairing code on the watch screen, check the Bluetooth settings in the smartphone itself.

Go to Settings → Bluetooth, find your watch in the list of devices and click on the gear icon or information. Make sure the Sound and Contact switches are active. Without this, the clock will vibrate when you call, but the sound of the conversation will go through the phone speaker.

The sound quality of Bluetooth calls depends on the protocol version and the distance to the phone. If you notice interruptions or echoes, try turning off other Bluetooth devices nearby or restarting the communication module on both gadgets, sometimes helping to "forget" the device in the phone settings and create a pair again.

Solving Sound and Microphone Problems

Even if you set it up properly, users can run into problems: the person you're talking to can't hear you, or the sound is too quiet. First, check if the microphone hole is covered with a protective film or a finger while talking. In compact cases, the microphone is often located behind or on the side, and it is easy to close.

The second common problem is app conflict: If the clock and phone run calls apps simultaneously (like Google Phone and System Dialer), the wrong device may be given priority. In the clock settings, find the Sound and Vibration section and check the speaker volume level, which is often adjusted separately from system notifications.

Also check the permissions for the companion app. In your smartphone settings, go to Apps → Xiaomi Wear (or analogue) → Permissions. Make sure that access to the microphone and phone is allowed completely, not just “during use.” For stable operation, background processes should not be blocked by the energy saving system.

Energy consumption and autonomy in conversations

Voice is one of the most energy-intensive processes for wearable electronics. The heavy use of LTE or even a permanent Bluetooth channel for voice transmission significantly reduces battery life. If the manufacturer claims 14 days of operation, this usually means only notifications and rare pulse measurements.

With active use of calls, autonomy may decrease to 1-2 days, but in mode 4G-modem 20 This is because the communication module is constant and the network supports the connection to the base station. LTE, When you are near your smartphone, switching to Bluetooth.

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To extend battery life during important negotiations, turn on Do Not Disturb mode for all applications except the phone book and reduce screen brightness to a minimum.">This will reduce the background activity of the processor and save the charge for the conversation itself.

Using an always-on display (AOD) in combination with active calls also quickly drains the battery. If you plan a long conversation, it is better to wake the screen with a tapt on the button than to keep the backlight active all the time. Optimizing screen settings and turning off unnecessary widgets will help win additional minutes of work.

FAQ: Frequently Asked Questions

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The choice of Xiaomi watches for calls depends on your need for autonomy: for rare conversations, a Bluetooth model is enough, for complete independence from the phone you need to use the phone. LTE-option with eSIM or physical slot.