Citizen Eco-Drive OnevsPhoibos Apollo

The Citizen Eco-Drive One is widely celebrated for its groundbreaking thinness, with multiple sources confirming its status as the world's thinnest light-powered watch, measuring between 2.98mm and 3.5mm. Owners and reviewers alike praise its exceptional lightness, titanium construction, and good build quality that avoids feeling flimsy, noting its "wow factor" and superb finishing. The watch features a proprietary, ultra-thin Eco-Drive quartz movement and a synthetic sapphire dial, with some models offering up to 12 months of power reserve. However, its high price, ranging from $3,500 to $5,000, is a significant drawback for some, and its aesthetic is considered too plain or dated by a minority who prefer other Citizen models. The Citizen Eco-Drive One is also noted for lacking a seconds hand and having only splash-resistant water protection.

The Phoibos Apollo is widely praised for its unique design, outstanding lume, and lightweight titanium build, with owners highlighting its comfortable 41mm wearability and value powered by a Miyota 9015 movement. Some find the "rocket" hand design hinders quick time-telling, and the bracelet does not taper. A few owners consider its price point high relative to other titanium and bronze offerings. Overall, owners rate the Phoibos Apollo highly for its distinctive aesthetic and excellent lume at the price.