First half marathon with Shokz OpenFit Pro
My first half marathon taught me more than a short trial could: fit with glasses, stability after sweat, awareness in noise, and comfort after more than two hours of use.
Hong Kong SAR / Materials Engineer
I’m a materials engineer in Hong Kong, currently working on wearable products at Shokz. I care about the point where a material choice becomes something a user can feel: fit, surface, stability, comfort, cost, and what still works after the product leaves a test bench.
Featured work
I’m not trying to show every task. I keep these three public cases because they show how I make materials decisions: reduce cost without losing the product, judge stability from body context, and use characterization to narrow the next decision.
A 43% coating-expense reduction case: not picking the cheaper input, but separating requirements that protect the product from habits that only protect the process.
A stability case that starts from the body: fit, sweat, storage, glasses, repeated handling, pressure over time, and what the user notices when the product is no longer new.
A characterization case about naming the blocked decision first, then choosing what to measure, what to compare, and when to stop chasing a weak signal.
Field note
My first half marathon taught me more than a short trial could: fit with glasses, stability after sweat, awareness in noise, and comfort after more than two hours of use.
Substack
I keep slower, more personal writing on Substack, in the language and rhythm in which each piece was first written.

一到周末,都会睡到十点多,看见窗外线条分明的光线,这是我每周最幸福的时刻。从六月底到圣诞周,我渐渐经历了社会角色的转变,回头翻相册,总想给自己一个阶段性的记录,不如就从冬至这天动笔好了。…

馬力斯,三號風球,和婷婷在中環晚餐,看到商城指示牌提示氣象站公告時,突然想起去年九月來港入學時,掛的是十號風球。 來香港讀碩士這一年,像是在不確定中找到確定的人和事,一定會在大學站落車,一定會在創博館和同學一起趕作業,一定會在高錕樓接受導師的指教,我每次到CU,出地鐵站,站定幾秒鐘,從山底慢慢望到雲層,鱗次櫛比,又靜又豐,心曠神怡。…

年末,寒潮涌过南岭,飞去北京探亲,在飞机上俯瞰华北平原,非黑即白,点点黑是个个聚落,除了黑,就是雪白。到大兴机场,暖气逼人,落地窗外地勤在给飞机除雪,人们兢兢业业,如今工作难找,不敢懈怠。…

网约车司机听YouTube歌单 西贡“外滩”夜景 Cholon唐人街,道路尽头是方济各天主堂 为于Binh Tay 市场中央石刻,记录潮安人郭琰(yan三声)来胡志明创业乐善好施 从独立宫望中轴线 国际学校 胡志明市政厅 午后暴雨 雨后 独立宫前的年轻人 胡志明中央邮局 于胡志明新山一国际机场候机厅整理,注释完善于河内西湖喜来登。
Quiet close
This site keeps only what I can share openly: how I frame materials decisions, where I draw trade-offs, and what real use keeps teaching me about product experience.
Email is the most direct way to reach me.