Bluetooth 4.0 Becomes 'Bluetooth Smart' as iPhone 4S Creates New Opportunities

Following the debut of the iPhone 4S as the first phone to support the Bluetooth 4.0 standard, the Bluetooth Special Interest Group (SIG) has begun promoting the technology under the new "Bluetooth Smart" marketing term. In a press release issued today, the Bluetooth SIG outlined the types of devices that will fall into the Bluetooth Smart categories.
The Bluetooth Special Interest Group (SIG) announced two new brand extensions to its globally recognized logo today in an effort to create consumer awareness around compatibility for new devices implementing Bluetooth v4.0 – the Bluetooth Smart Ready trademark and the Bluetooth Smart trademark. Bluetooth Smart Ready devices are phones, tablets, PCs and TVs that sit at the center of a consumer’s connected world and implement a Bluetooth v4.0 dual mode radio. Bluetooth Smart devices are sensor-type devices like heart-rate monitors or pedometers that run on button-cell batteries and were built to collect a specific piece of information. Bluetooth Smart devices include only a single-mode low energy Bluetooth v4.0 radio.
Bluetooth Smart has been promised as a way to allow devices to interact wirelessly using low-power standards, enabling countless new potential uses.
Bluetooth Smart devices are designed to gather a specific type of information—are all the windows on my house locked, what is my insulin level, how much do I weigh today?—and send it to a Bluetooth Smart Ready device.
Examples include heart-rate monitors, blood-glucose meters, smart watches, window and door security sensors, key fobs for your car, and blood-pressure cuffs—the opportunities are endless.
While the iPhone 4S is not yet able to make extensive use of the features specific to Bluetooth Smart due to a lack of peripheral single-mode Smart devices capable of transmitting data to the iPhone, it is clear the Bluetooth standards bearers and manufacturers will be quickly pushing forward to promote the adoption of Smart technology in a host of new product categories.
Beyond the iPhone 4S, Apple has also been building Bluetooth 4.0 support into several of its latest Mac lines, including the Mac mini and MacBook Air introduced back in July. Notably, today's MacBook Pro update did not bring Bluetooth 4.0 support to that line, although the update was an extremely minor one that Apple is not even acknowledging as a refresh on its promotional product pages. Consequently, the update appears to have been limited to core "plug-and-play" features such as CPU, GPU, and hard drives that could be easily upgraded rather than features like new Bluetooth 4.0 capabilities that could require more significant engineering work.
Popular Stories
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be.
The iPhone 17 Air is expected to be ...
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison.
The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect.
As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device.
Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup.
If you skipped the iPhone...
Starting today, April 24, Apple Stores around the world are giving away a special pin for free to customers who request one, while supplies last.
Photo Credit: Filip Chudzinski
The enamel pin's design is inspired by the Global Close Your Rings Day award in the Activity app, which Apple Watch users can receive by closing all three Activity rings today. The limited-edition pin is the physical...