“Call function” on a watch product page covers three quite different products: a watch that carries the call audio through its own speaker and microphone while your phone sits nearby, a watch with its own mobile radio that calls with your phone left at home, and a watch that only tells you somebody is ringing. This guide sets out how to tell which one you are looking at before you pay, names two watches whose makers publish the hardware evidence, and flags what we could not confirm. It stays in the entry tier: the two models we examine are Bluetooth-calling watches, and the cellular rung is a set of questions for your provider rather than a shortlist.
The three tiers stack, so read them as capability
These three tiers are our framing for reading a product page, not three species the industry agrees on. Each rung is defined by the radio inside the watch. The bottom rung has no audio path at all, so it notifies you and nothing more. The middle rung carries audio over Bluetooth to the paired phone, through the watch’s own speaker and microphone, so the phone has to be within range. The top rung adds a cellular radio of its own, so the watch can place and take calls when the phone is elsewhere, and it can still do everything the rung below does. Because the tiers stack, a cellular watch is also a Bluetooth-calling watch. The useful question is therefore not which class a model belongs to, but what the highest rung its maker supports is. Read the product page for two things: whether the maker adds cellular or LTE as a connectivity option, and whether a provider in your country sells a plan that a watch can use.
The spec-sheet check that changes a decision
Ask these in order. Does the specification name a speaker and a microphone? If it does, treat that as a necessary condition rather than a verdict: a speaker and a microphone also serve music playback and a voice assistant, so on their own they do not prove the watch handles phone calls. The sufficient evidence is the maker saying so explicitly, in a Bluetooth-calling or hands-free statement on the product page or in the manual. Amazfit makes both statements. If no such line appears, read that as a gap in the documentation rather than a verdict on the hardware, and ask the maker before you buy. Does the maker offer a cellular or LTE option, and does your provider sell a wearable plan? If you need calls with the phone left behind, both answers have to be yes, because a cellular watch needs an eligible plan from a supported provider. Where one operator serves both devices, it may allow the watch to share the phone’s number rather than take a separate one. One further check applies to Wear OS watches, and it is not in a companion app. Google’s page on making and receiving calls on a cellular watch describes using the watch as a speakerphone, with the steps performed on the watch itself: Settings, then Connectivity, then Bluetooth, then “Play phone voice call on watch”. The page documents the path, not a default, so we cannot say whether it arrives switched on; it is written for cellular watches. The notification layer is a different job, and every rung delivers it: Amazfit’s Bip 6 specification lists “Phone Call Notifications: Support” and “Call Quick Reply”. Showing you who is calling, and letting you send a short reply, is not the same as carrying the conversation. If your problem is missed calls while the phone sits in a bag, notifications cover most of it, and the rung above is only needed when you cannot reach the phone at all.
Two watches whose makers publish the hardware evidence
We are deliberately not quoting prices. They move between retailers and we cannot verify one for the day you read this, so check the maker’s own page before you buy. Amazfit’s Bip 6 page answers the call question inside its own questions section: “Yes, the Bip 6 supports Bluetooth calls and texts”, and the summary above it says the watch will “Make and answer Bluetooth calls while receiving on-wrist notifications”. What matters more for our check is the hardware list, which names both items plainly: “Mic: Support, Speaker: Support”. Amazfit’s compatibility answer is “most Amazfit devices are compatible with both Apple iOS and Samsung, Google or other Android OS based mobile phones” — a maker-level claim about pairing, with its own qualifier, and not a statement about the call feature on one model. Huawei’s page for the WATCH FIT 4 lists Bluetooth calling as a feature, described as taking calls without reaching for your phone “once you’ve connected your device via Bluetooth”, and states that the watch is compatible with both iOS and Android. Huawei’s marketing wording, “Take calls with a tap… once you’ve connected your device via Bluetooth”, promises answering. Its own support documentation for Bluetooth voice calls does describe dialling out, from the watch’s Call log or Contacts apps, so both directions are documented, on different pages. Its Bluetooth calling also runs through its Health app: the product page footnote reads “Android 8.0/iOS 13.0 or later and installed with the Huawei Health app”, and Huawei’s own support guidance for Bluetooth calling tells owners to open that app to check the connection, so the phone and the app both stay in the chain. Huawei’s specification for the same model names the hardware explicitly, listing a speaker and a microphone as supported, so on the check this article sets both models clear it, and the maker’s own documentation is where you confirm it. Neither page publishes a call range, and neither lists a cellular option for these two models, so both sit at the Bluetooth-calling rung in practice.
How far the tether reaches, and when it does not apply
Neither product page gives a call range for these two models, and we will not invent one. Huawei’s Bluetooth-calling troubleshooting guidance advises keeping the phone and watch “within 3–5 metres” and clear of large obstructions when call audio misbehaves, which is diagnostic advice rather than a stated product range. Walls and distance degrade the link the same way they do for any Bluetooth accessory. That is not the whole picture, and the exception matters if the phone is what you want to leave behind. Apple’s support pages document this for its own hardware: a non-cellular Apple Watch can call over Wi-Fi when the iPhone is away or switched off, provided the watch is on a known Wi-Fi network with Wi-Fi calling set up. That is the maker’s own account, scoped to Apple Watch, not a measurement we took. Google’s help page describes the same split from the Android side, noting that within Bluetooth range you can dial from either device, and that calls made out of Bluetooth range use the watch’s own number, which is cellular behaviour. The rule for the rung this guide covers is therefore simple: the phone has to be within Bluetooth range. Both makers publish a connectivity list and neither includes Wi-Fi: the Bip 6 gives “Bluetooth 5.2, BLE”, and the WATCH FIT 4 lists NFC and Bluetooth. No Wi-Fi radio is published for either model, so no Wi-Fi calling path is documented, and the Apple exception does not apply here. If your reason for buying is leaving the phone behind with no Wi-Fi in reach, that is the rung above, and it comes with the plan requirement in the next section.
Standalone calling means a plan as well as a radio
A watch that calls with your phone elsewhere is not doing anything cleverer; it has a radio and a service arrangement behind it. Apple’s setup instructions for cellular service require an eligible plan with a supported provider, on the same provider as the paired phone. Google’s page, which covers Wear OS watches, notes that where the same operator serves both devices it may let them share a single number, and that call forwarding is how calls to your phone reach the watch. Each rule is documented for its own platform rather than universally, so check which applies to your watch. The only way to know your own case is to ask your provider whether it sells a wearable plan and whether the watch can share your existing number. A cellular watch without an eligible plan is a heavier Bluetooth watch.
iPhone and Android: pairing is confirmed, call behaviour is not
Apple Watch is built for iPhone, which makes it the straightforward answer for iPhone owners, and Apple sells it in a GPS version that works through the phone and Wi-Fi plus a GPS + Cellular version with its own connection. Other makers support iPhone too. Both watches above are described by their makers as compatible with iOS and Android, and Amazfit’s page answers the iPhone question directly. The point that decides your case is the same on both platforms: a compatibility sentence describes the app pairing, not the call feature. Huawei documents it by name: its compatibility matrix marks Bluetooth Call, Call Log and Contacts as supported under both “Android 8.0 or later” and “iOS 13 or later”, with one exception: rejecting a call by quick message reply is unavailable when paired with an iPhone. Amazfit states iOS and Android compatibility without breaking the call features out, so check that one with the maker. One practical point: check the maker’s compatibility page that your phone is supported, since Android is not one thing. And decide whether you want a full app platform or a lighter watch that tracks well and takes calls — that split is our reading, not a maker’s claim.
What you give up at this rung
Battery life is where the trade becomes visible, and the honest way to read a battery claim is to read the conditions under it. Huawei’s specification quotes ten days at most, seven days in typical use, and four days with the always-on display enabled. Those three numbers do not share one test profile. Huawei footnotes each separately: the maximum assumes 30 minutes of Bluetooth calling and 30 minutes of music playback a week, while the typical and always-on figures carry their own conditions. Read each number against the profile printed under it. Everything else on the list is our summary rather than a quoted claim. No cellular option on the two models above. A watch platform that runs fewer apps. Sensors that measure the common metrics without the extra hardware behind medical-grade features. Amazfit’s page also carries a 1.97-inch AMOLED display claim, which tells you nothing either way about whether the watch can carry a call. None of that is a fault at this rung. It is the trade, and it is better made deliberately than discovered in the first week. Both makers list the usual fitness metrics without publishing accuracy figures, so the sensor set does not decide this question.
Where buyers go wrong
The errors the checks above exist to catch: reading a notification claim as a calling one, reading a parts list as proof of a feature, treating a compatibility sentence as covering the call feature, and buying a cellular model without asking the provider what the plan adds to the bill.
Pros and cons
What this rung gives you
- Notifications and quick replies on the wrist, which covers missed calls when the phone is in a bag or another room.
- Calls carried through the phone over Bluetooth, with no cellular plan needed.
- Long battery life, because there is no cellular radio to drain it; Huawei quotes ten days maximum and seven typical.
What you give up
- The phone has to stay within Bluetooth range. Neither maker’s published specification lists a Wi-Fi radio, so we cannot show you a fallback on either; that is a gap in the documentation rather than a finding about the hardware.
- No standalone calling at all, since a cellular radio and a wearable plan are what that requires.
- A smaller app platform than a full smartwatch, which is what this tier trades away.
- Sensors that cover the common metrics without the hardware behind clinical claims.
Who it excludes
- Anyone whose reason for buying is leaving the phone at home. That buyer needs the cellular rung, and should confirm a wearable plan with their provider first.
Who should buy this rung, and who should skip it
Suits someone who wants to answer short calls and see notifications without pulling a phone from a pocket, and who keeps that phone within Bluetooth range. Skip the Bluetooth rung if the entire point is leaving the phone behind; that case needs a watch with its own radio, and only after your provider confirms it sells a wearable plan. We are not naming a model as the pick: the makers document the call feature to different depths and neither publishes a call range. The checks are the recommendation. The trade-off is the tether, since at this rung the watch is only as good as the Bluetooth link to the phone.
Questions
Can a smartwatch make calls without my phone?
On the rung this guide covers, it calls through the phone: a Bluetooth-calling watch uses the paired phone’s connection, so the phone needs to be within Bluetooth range. That is the rule we can support for the models here: neither maker publishes a Wi-Fi radio, and we treat that as a documentation gap rather than a finding about the hardware. Apple documents an exception for its own hardware only, where a non-cellular Apple Watch can call over Wi-Fi with the iPhone away or switched off, on a known network with Wi-Fi calling set up. A cellular model calls over its own mobile network and needs an eligible plan from a supported provider, and that is the rung that genuinely leaves the phone behind.
How do I tell whether a watch has a speaker and a microphone?
Read the specification table, then read what the maker claims for calls. Both makers list a speaker and a microphone as supported, and Amazfit adds that the watch will “Make and answer Bluetooth calls” — that claim, not the parts list, is the sufficient half of the test. Where a page advertises calling but publishes neither, ask the maker before you buy.
Will a budget smartwatch take calls with my iPhone?
Amazfit states that its devices are compatible with iOS and Android phones and that the Bip 6 supports Bluetooth calls, Huawei lists the WATCH FIT 4 as compatible with both iOS and Android, but we could not confirm from either maker’s page whether the call feature behaves identically on iPhone, so if per-platform call behaviour decides your purchase, ask the maker’s support directly before buying, or choose Apple Watch, which documents the full feature set for iPhone. Apple sells it in GPS and GPS + Cellular versions.
Does a calling watch need its own data plan?
Not on the Bluetooth rung, where the watch borrows your phone’s connection and its own plan is not required. On the cellular rung it does, with Apple’s instructions requiring an eligible plan on a supported provider and the same provider as the phone, and Google noting that an operator may let the two devices share a single number instead.
Next step: browse the rest of our everyday-tech guides for the same approach to headphones, laptops and tablets, starting with the spec table instead of the marketing copy. Android is a trademark of Google LLC.
Nexgadgets provides general information, not professional advice. Always do your own research.
