Digital Adjustable Tasbih Ring Waterproof

Precise sizing: 16mm, 18mm, and 20mm inner diameter options — each ring sized to ISO finger measurement standards for accuracy. Total unit weight under 12g. Materials: Impact-resistant ABS polymer core fused with soft-touch silicone outer band — compliant with EU REACH standards for skin contact safety. Powered by a 75mAh lithium-polymer battery with micro-USB charging interface (cable not included per package list). Core functionality includes single-button cycle counting (with optional double-click reset), memory retention across power cycles, and low-battery indicator (visual or haptic, as implemented in firmware). The waterproof seal meets IP67-level resistance — tested to survive immersion up to 1m for 30 minutes without failure. Developed in consultation with regular practitioners: form follows function. Worn like a conventional ring, it integrates seamlessly into sunnah-based habits — whether counting istighfar post-salah, tracking salawat, or marking repetitions during tahajjud — all without breaking flow or requiring external devices.