Wearable Hardware Design & PCB Development
Wearable hardware has constraints that standard electronics do not - miniaturised form factors, flexible or rigid-flex PCB layouts, antenna placement that does not degrade when the device is worn against skin, power trees optimised for coin cells and small LiPo batteries, and component selection that survives the IP rating your product needs. We design wearable PCBs from schematic through layout, DFM analysis, prototype bring-up, and manufacturing handover - selecting components based on size, current draw, and supply chain availability. Most wearable designs reach a validated prototype in two hardware iterations.
Wearable Firmware Development
Wearable firmware runs under constraints that desktop and mobile software never faces - microamps of average current draw, kilobytes of RAM, intermittent BLE connections that drop and reconnect, and sensor data that needs to be buffered correctly when the device can not transmit. We write wearable firmware in C and C++ on Nordic nRF52, STM32, and Silicon Labs EFR32 platforms - implementing sensor drivers, BLE GATT profiles, power management state machines, data logging, and OTA update systems. Every firmware deliverable includes unit tests, power profiling results, and documentation your team can maintain.
BLE Connectivity & Wearable Sensor Integration
The BLE stack between a wearable device and its companion app is where most wearable products have their worst user experience - slow pairing, dropped connections, data loss during bursts of sensor activity, and background sync that drains the phone battery. We implement BLE 5.0 on the device side and the corresponding iOS Core Bluetooth and Android BLE API integration on the companion app - handling pairing flows, service discovery, characteristic reads and notifications, connection state recovery, and background data sync correctly. We have integrated accelerometers, gyroscopes, heart rate sensors, SpO2 sensors, GPS modules, temperature sensors, and custom analogue front ends into production wearable products.
Wearable Cloud Backend Development
Wearable devices generate continuous streams of sensor data and that data is only useful if the backend can receive it reliably, store it efficiently, process it in near real-time, and expose it through APIs that your app and any third-party integrations can consume. We build wearable cloud backends on AWS, GCP, and Azure - handling device registration, BLE data ingestion through the companion app, time-series storage, user account management, goal and notification logic, and third-party health platform integration with Apple HealthKit and Google Health Connect. We have built backends handling tens of millions of daily data points from large consumer wearable deployments.
Wearable Companion App Development (iOS & Android)
The companion app is what most users interact with more than the device itself and a poorly built companion app makes an excellent wearable feel mediocre. We build companion apps for iOS and Android using React Native and native Swift and Kotlin - covering BLE device pairing and management, real-time data display, historical trend visualisation, goal setting, push notification delivery, and health platform sync with Apple HealthKit and Google Health Connect. We design companion app UX with the wearable data model at the centre, not as an afterthought. Users should understand what their device is telling them without reading a manual.
Wearable Product Strategy & UX Design
A wearable product that does not clearly communicate its value to a user in the first 10 minutes of use gets returned. We run product strategy engagements that define the core use case, the sensor set that actually supports it, the data model that makes the metrics meaningful, and the UX flows on-device and in the companion app - that surface insights without overwhelming. We have helped wearable teams cut their initial feature set by 40% and ship faster, with better adoption, by focusing on the core interaction rather than matching a competitor feature checklist.
Medical Wearables Development
Medical wearables - ECG patches, continuous glucose monitor companions, blood pressure wristbands, pulse oximetry monitors, and remote patient monitoring devices - require sensor accuracy, signal quality, and reliability that consumer fitness wearables do not need to achieve. We develop medical wearable hardware with custom analogue front ends for ECG, EDA, EMG, and photoplethysmography signals, firmware with medical-grade signal processing and artefact rejection, BLE streaming at the data rates clinical use cases require, and clinical dashboards that display wearable data alongside patient record context. We assist in building solutions that meet the standards your medical wearable environment requires, and work alongside your regulatory affairs team throughout the process.
Smart Band Development
Smart bands sit at the intersection of miniaturised hardware, aggressive battery life targets, and a companion app experience that needs to feel effortless — because if wearing the band becomes inconvenient, users stop wearing it. We develop smart bands end-to-end: custom PCB design with rigid-flex layouts, ultra-low-power firmware on Nordic nRF52 platforms, BLE GATT implementation for heart rate, activity, and sleep data, coin cell or small LiPo power management targeting multi-week battery life, and companion apps for iOS and Android with HealthKit and Google Health Connect integration. We have shipped consumer smart bands at retail volume and understand what distinguishes a product that gets returned from one that earns a 4-star review.
