How to make calls on iWatch: analysis of popular topics on the Internet and operation guide
Recently, smart wearable devices have become a hot topic in the technology field, especially the communication function of Apple Watch (iWatch) has attracted much attention. This article will combine the hot content on the Internet in the past 10 days to analyze in detail the operation method of making calls on iWatch, and attach relevant data comparisons.
1. Inventory of hot topics on the Internet in the past 10 days

| Ranking | Topic keywords | Search volume (10,000) | Main platform |
|---|---|---|---|
| 1 | Apple Watch calling function | 28.5 | Weibo, Zhihu |
| 2 | Smart watch independent call | 19.3 | Baidu, Douyin |
| 3 | eSIM technology analysis | 15.7 | Station B, WeChat |
| 4 | Wearable device battery life comparison | 12.1 | Toutiao, Little Red Book |
2. 3 ways to implement calls on iWatch
1. Bluetooth connection to iPhone for calls
This is the most basic way to implement phone functions, and the iPhone needs to be kept nearby (within a range of 10 meters). Operation steps: Wake up Siri and say "Call XXX" or enter the phone app to select a contact.
| Model | Supported version | Call quality rating |
|---|---|---|
| Series 3 | WatchOS 5+ | ★★★☆☆ |
| Series 6-9 | Full system support | ★★★★☆ |
2. Independent calls over cellular network
Three conditions need to be met:
- iWatch models that support cellular networks (such as SE/Series6+)
- Activate the operator's eSIM service (currently supports China Mobile/China Unicom/Telecom)
- Use the same number as your iPhone (or apply for a secondary card)
| Operator | Activation fee | Covering cities |
|---|---|---|
| China Mobile | 10 yuan/month | Nationwide |
| China Unicom | 5-10 yuan/month | 287 city |
3. Internet calling application
Make online calls through WeChat, FaceTime and other applications:
- WeChat needs to keep running in the background
- FaceTime requires both parties to be Apple ID users
- Available on all models (WiFi or cellular network required)
3. Answers to the 5 questions that users are most concerned about
1.Why can't my iWatch make calls?
Check: ① Whether it is cellular version ② Whether eSIM is activated ③ Whether the operator supports it
2.Does the phone need to be turned on during a call?
The cellular version can be used completely independently, but Bluetooth calls require the phone to be turned on.
3.How long is the call battery life?
Actual measurement data: Cellular calls drain the battery in about 1.5 hours (Series 8)
4.Can you answer unknown calls?
Yes, all incoming calls will be displayed simultaneously (including harassing calls)
5.Is international roaming supported?
Currently only some operators support it (international services need to be activated in advance)
4. Comparison of call functions of popular smart watches in 2023
| Products | Calling method | eSIM support | Typical battery life |
|---|---|---|---|
| Apple Watch S9 | Bluetooth/Cellular | Yes | 18 hours |
| Huawei Watch 4 | Bluetooth/Cellular | Yes | 3 days |
| Xiaomi Watch 2 Pro | Bluetooth only | No | 2 days |
5. Operation skills and precautions
1.speed dial: Press and hold the side button to wake up Siri, or set frequently used contacts to watch face shortcuts
2.Call noise reduction: Turning on the "Conversation Coverage" function in the Watch App can improve call quality in noisy environments
3.Power saving suggestions: Turning off non-essential functions such as heart rate monitoring during cellular calls can extend battery life by 20%
4.child mode: Through family sharing settings, you can limit the contacts that can be called on children's watches.
With the popularity of eSIM technology, smart watches are evolving from health monitoring tools to independent communication devices. Mastering these call skills can make your iWatch truly a portable communication tool.
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