Software
| Category | Choice |
|---|---|
| Account Security | Bitwarden, 2FAS Auth |
| AI Assistant | ChatGPT, DeepSeek |
| Browser | Safari (macOS) and Chrome (Windows) |
| Cloud Storage | Google Drive and iCloud |
| Code Editor | Visual Studio Code and PyCharm. Rarely used these days. |
| Gmail | |
| Finance | iCost |
| Music | Spotify |
| Visualization | Matplotlib with Python for general purposes, ECharts for the web, and OmniGraffle (available only on Apple devices) for academic visualizations. |
Hardware
| Category | Current & Previous |
|---|---|
| Smartphone | iPhone Air (2026, current)iPhone 14 Pro Max (2023)iPhone 11 (2019) iPhone 7 (2016) Mi 4C (2016) iPhone 5s (2014) Nokia Lumia 920 (2012) |
| Laptop | MacBook Air M2 15-inch (2023, current, 16GB, 512GB) MacBook Air M1 13-inch (2020, 8GB, 256GB) Lenovo Z51-70 15-inch (2015, i7-5500U, R9-M375, 8GB, 1TB) |
| Desktop | Homebuilt (2025, current, R5-9600X + B650M, RTX 5060, 32GB, 512GB+2TB) Homebuilt (2018, R7-1700 + B450M, GTX 1050 Ti, 16GB, 512GB+1TB) Lenovo Desktop (2006, exact model forgotten, one of the HomeJoy (家悦) series with a dual-core CPU) |
| Keyboard | CHERRY XTRFY MX 8.3 TKL Wireless (2025, current) Logitech K120 (2020) CHERRY MX Board 8.0 (2018) Logitech K120 (2016) CHERRY MX Board 2.0 (2015) |
| Mouse | Logitech G Pro Wireless 4 (2025, current) Logitech G Pro Wireless (2021) Various models of DAREU EM915/925 (2015) |
| Wearable | Apple Watch Series 9 (2023, current) Fitbit Alta (2016) Fitbit Charge (2015) |
| Tablet | iPad mini 3 (2015) |
| Camera | Fujifilm X-S20 with XF23mmF1.4 R LM WR (2025, current) |
| Earphones | AirPods Pro 3 (2026, current) EarPods (2023) AirPods Pro 1 (2021) Beats urBeats3 (2020) AKG K3003 (2019, lost on a flight from Abu Dhabi to Beijing) AirPods 2 (2019) Vsonic GR09 (2018) AirPods (2017) Ecci PR200 MK2 (2016) Mi In-Ear (2015) EarPods (2015) Logitech UE 900 (2013, love it, but lost it) Apple In-Ear Headphones with Remote and Mic (2012, my love!) |
| Headphones | Sennheiser MOMENTUM 4 Wireless (2022, current) Sennheiser MOMENTUM 2 Wireless (2016) AKG K450 (2015) |
| Media Player | iPod classic 6 (second-hand, 2013) iPod nano 6 (2012) iPod touch 4 (2012) iPod shuffle 4 (~2010) iPod shuffle 2 (second-hand, ~2009) ONDA MP4 with a 3-inch screen (~2009) Cheap MP3 player from a grocery store (~2008) |
| Game Console | Switch (2021, current) Xbox One X (2018, current) Xbox One S (2017) |