Sub-Microwatt Power Budgets: What They Mean for Battery Life

Power budget is the single biggest constraint on any battery-powered or energy-harvested IoT sensor. Most conventional BLE SoCs are designed around bidirectional connections — pairing, GATT services, connection intervals — all of which keep the radio active far more than a simple beacon needs.

NanoBeacon's TX-only architecture strips this down to the essentials: broadcast the data, go back to sleep. There's no connection overhead, no negotiation, and no idle listening. Combined with aggressive sleep-current optimization, this lets IN120 average well under a microwatt of power across a typical broadcast interval.

In practical terms, this is the difference between a coin-cell-powered smart label lasting a few weeks versus multiple years, or between a design that requires a battery at all versus one that can run entirely on ambient energy harvesting — solar, RF, or thermal.

For product teams evaluating BLE sensor SoCs, average power consumption during actual operation — not just sleep-mode datasheet numbers — is the metric that determines whether a disposable label is economically viable at scale.