Travel eSIM Guides and Tips | UncleSim

Cover image: hands holding a SIM card above a desk with a phone, a notebook and a SIM ejector tool.

手上有 LuckySIM 卡,仲要插卡、仲要驚跌卡?可以免費轉做 eSIM。

手上有 LuckySIM 卡,仲要插卡、仲要驚跌卡?可以免費轉做 eSIM。

手上有 LuckySIM 卡,仲要插卡、仲要驚跌卡?可以免費轉做 eSIM。

手上有 LuckySIM 卡,仲要插卡、仲要驚跌卡?可以免費轉做 eSIM。

Cover image: a passenger beside an aircraft window looking out at golden-hour clouds.

一年飛幾次,唔想每次換卡、每次買 plan?

一年飛幾次,唔想每次換卡、每次買 plan?

一年飛幾次,唔想每次換卡、每次買 plan?

一年飛幾次,唔想每次換卡、每次買 plan?

A phone on a desk beside a notebook and a printed map

Asia eSIM Prices: A Daily Allowance or One Total?

Seven days of 2GB-a-day data costs US$12.18 in Thailand and US$17.56 in Korea. Here is what a week actually costs across Asia, and why the shape of a plan matters...

Asia eSIM Prices: A Daily Allowance or One Total?

Seven days of 2GB-a-day data costs US$12.18 in Thailand and US$17.56 in Korea. Here is what a week actually costs across Asia, and why the shape of a plan matters...

Cherry blossoms in a city park with a skyline behind

Best Time to Visit Japan, Korea and Taiwan: A M...

Weather, crowds and prices across Japan, Korea and Taiwan through the year, and how the three destinations differ.

Best Time to Visit Japan, Korea and Taiwan: A M...

Weather, crowds and prices across Japan, Korea and Taiwan through the year, and how the three destinations differ.

The view of green countryside from a moving train window in Japan

Japan Rail Pass 2026: When It Pays Off and When...

How to decide whether a rail pass is worth buying, and the trips where separate tickets are cheaper.

Japan Rail Pass 2026: When It Pays Off and When...

How to decide whether a rail pass is worth buying, and the trips where separate tickets are cheaper.

A traveller with a backpack at the glass wall of an airport transit concourse

Hong Kong Layover Guide: 6, 12 and 24 Hours at HKG

What is realistic in 6, 12 and 24 hours at Hong Kong airport, and when staying airside is the better call.

Hong Kong Layover Guide: 6, 12 and 24 Hours at HKG

What is realistic in 6, 12 and 24 hours at Hong Kong airport, and when staying airside is the better call.