TAG Heuer's change of direction with the Connected Calibre E5 is clear: after living with Wear OS For years, the Swiss house has been releasing proprietary platform with Made for iPhone certification and a roadmap that prioritizes stability, performance, and true iOS compatibility.
Along with this software leap, the brand is presenting a collaboration with New Balance in a 40mm special edition format that focuses on running and guided training; a sporty nod that comes with Titanium design, extremely comfortable strap and plans created by specialists.
TAG Heuer breaks with Wear OS and moves closer to the iPhone
The Calibre E5 abandons Google software and debuts TAG Heuer OS, an in-house development powered by a team of 60 engineers in ParisThe interface is cleaner and faster, with fluid animations and simplified menus that allow you to navigate both on the screen and with buttons.
The new system comes with official MFi certification, something key for a client in which approximately 70% sync with iPhoneThis makes pairing faster, Bluetooth and Wi-Fi connectivity more stable, and notifications and calls operate without the usual hiccups of previous generations.
The bet has its drawbacks: the ecosystem is closed, so there third party apps, no Google Pay, no LTE connectivity. In return, the experience seeks to be consistent, without surprises and without constant adjustments.
New Balance design, sizes and edition
The family is offered in two cases: 45 mm and 40 mmBoth feature AMOLED displays (1,39” and 1,20”), respond with improved haptics, and are powered by the Qualcomm Snapdragon 5100+ chip, a combination that’s more than enough to run the new software smoothly.
The special edition New Balance (40 mm) looks Grade 2 titanium case with black DLC coating and domed sapphire crystal. It features a 0-100 scale on the dial that aligns with the effort metrics, as well as the New Balance logo engraved on the caseback.
The strap also gains prominence with the patented system Cushion Comfort System, which combines a flexible rubber base and technical fabric to improve comfort during long sessions. A second co-branded strap is included in the box.
To complete the visual coherence, there is three exclusive spheres for this collaboration: Casual, Balance, and Reskin, with palettes that align with the overall tones and clear layouts, packed with data for those who need it at a glance.
The alliance with New Balance does not stop at aesthetics: the watch integrates six career plans created by their coaches, with routes from 5K and 10K to half marathon preparation, strength and endurance or active recovery.
Performance, sensors and sport
The focus of the E5 is on software focused on wellness and training. sports app has been redesigned to offer color-coded guided screens, warm-up timers and real-time pace tracking, with automatic syncing later to analyze progress.
On the technical side, the watch features a battery of high-level sensors and positioning. Highlights include: Dual-band GNSS for greater route accuracy and continuous health functions.
- Dual-band GPS for reliable recording in the city and mountains.
- Measure heart rate and SpO2, with pulse variability (HRV).
- Sleep tracking, Breathing frequency and calories.
- Built-in compass, accelerometer, gyroscope and barometer.
The smart part includes microphone and speaker to manage calls, music control and activity widgets. The interface remains clear to read in sunlight and transitions quickly between menus.
Autonomy and charging
TAG Heuer indicates that the model of 45mm can last up to three days in low power mode and last around two days of normal use; in 40mm, the figure is up to two days, with around a day and a half if the screen is always on.
Charging is fast via USB-C base: Approximately 30–40 minutes provide energy for a day And 100% is delivered in around 90 minutes. It's a proposal designed to plug in for a short time and keep going.
Specific editions: Golf Edition
For those looking for data on their game, the brand maintains a golf-focused version with hole mapping and shot detectionAccess to over 39.000 courses worldwide comes with visual guidance and convenient wrist controls.
Price and Availability
The Connected Calibre E5 range is sold in the brand's boutiques and online store with a $ 1.600 starting price (approx. 1.470 euros at the exchange rate). This is a position in line with its technological luxury segment.
La New Balance edition The 40mm version is a limited run and is scheduled for release in October 2025, with an announced price of 2.000 Euros. Sneakers and watch sold separately.
The Caliber E5 fits the bill as a luxury smartwatch that prioritizes iPhone integration, sensor accuracy and careful design, assuming compromises such as the absence of third-party apps or LTE; a coherent proposal for those looking for reliability, sportiness and high-level finishes on the same watch.
