China eSIM Promo Codes (Nov 2026): Yesim, Saily, Ubigi & More

No code needed: Trip.com's China eSIM starts at $0.10 for 500 MB a day, and it's fully refundable any time before you activate it.

Also no code needed: Nomad's China plans already cost less than the coded prices above. Unlimited data is $25.00 for 7 days and $39.00 for 15 days, less than Yesim's passes even with ROAM15, though you get 2 GB a day at full speed. For a month, 20 GB for 30 days costs $22.00.

What you’ll pay in China after the code

Not sure which size you need? My guide to how much data you need in China has a quick answer for each trip length.

Unlimited data
	Yesim ROAM15−15%	Saily ROAMTESTED−10%	Quibity CHOFQZJF−5%	Nomad eSIM no code
1 week	$25.70	—	$39.90	$25.00
2 weeks	$41.82	$44.99	—	$39.00
1 month	$64.26	—	—	—

Fixed data, valid for 30 days
	Yesim ROAM15−15%	Saily ROAMTESTED−10%	Quibity CHOFQZJF−5%	Nomad eSIM no code	Ubigi ROAMTESTED−10%
5 GB	$11.22	$14.39	$13.21	$14.00	—
10 GB	$18.97	$24.29	$19.76	$19.00	$15.30
20 GB	$30.40	$35.99	$36.77	$22.00	—

The table calculates eligible code discounts, with the lowest comparable price in bold. Ubigi’s 10% ROAMTESTED code is partner-provided but not yet independently tested at checkout; it applies only to new customers’ first one-off or annual plan purchase (not monthly plans or top-ups). Nomad has no code, but it’s on the list because it’s often cheapest anyway. A dash means the brand doesn’t sell that plan, or I haven’t checked its price yet: Quibity’s unlimited plan runs 1–30 days and Saily’s 5–30 days, but I’ve only checked Quibity’s 7-day and Saily’s 15-day prices, and Nomad has no 30-day unlimited plan.

Not in the tables: NXTL takes data from a pay-as-you-go balance, from $2.29 per GB in China, and Trip.com sells day plans from $0.10 for 500 MB a day.

Deal-by-Deal Breakdown

Ubigi — 10% off with code ROAMTESTED (new customers)

Ubigi supplied my code ROAMTESTED for 10% off the first purchase of a one-off or annual data plan, in any destination. The code is not valid for existing customers, recurring monthly plans or top-ups. I have not yet verified the code in a personal checkout, so the following are calculated examples rather than receipts:

Mainland China 10 GB / 30 days: $17.00 before code; $15.30 if accepted.
Mainland China 25 GB / 30 days: $33.00 before code; $29.70 if accepted.

For the eligible offers, read my Ubigi China review. Planning a multi-country trip? Ubigi’s Asia plans use their own prices and destination coverage.

Yesim — 15% off with code ROAM15

I checked it at Yesim’s checkout myself. Here’s the screenshot below.

Yesim also has a referral programme. Once you’ve spent €5 with Yesim, you can invite friends, and each friend picks a welcome gift: €5 off, or 1 GB of free global data to try Yesim before buying. You get €5 when a friend has spent €5, plus €50 for every 5 friends. The free data is a global package, so check that its country list includes your destination. Purchases earn Ycoins too.

Saily — 10% off with code ROAMTESTED

Saily gave me a code for RoamTested readers: ROAMTESTED takes 10% off for new customers, and it doesn’t expire.

Google and WhatsApp work on Saily’s data without a VPN. My own field test is in progress, and the results will go in my Saily review.

NXTL — 10% off with code roamm10

NXTL takes 10% off with the code roamm10. On top of that, the $11.99 starter package includes $10 of pay-as-you-go balance, so your real cost of entry is about $1.99. Balance never expires, every purchase earns 5% back in NXTL Tokens, and referrals credit the referrer roughly $5 once the friend makes a qualifying first eSIM purchase.

Quibity — 5% off with code CHOFQZJF

Quibity gave me a code for RoamTested readers: CHOFQZJF takes 5% off, and the order still earns Quibity’s 5% cashback. That cashback is credit in your Quibity account, not money back on your card.

TooSim — 10% off with code ROATSM10

TooSim gave me a code for RoamTested readers: ROATSM10 takes 10% off for new customers.

Even with the code, TooSim costs more for the same data than every brand in the tables above: its 20 GB plan is $106.19 after the code, against $22.00 at Nomad. It has no unlimited plan to buy and no top-ups. Use the code if you’ve already chosen TooSim; my TooSim review covers who it suits.

Trip.com — the best-value choice

Trip.com doesn’t run promo codes the way dedicated eSIM brands do — instead, its plan is flexibility. Plans start at $0.1 (500MB, 1 day) on the three official Chinese carriers, run anywhere from 1 to 365 days, and are fully refundable any time before you activate the eSIM. You also earn Trip Coins on the booking, redeemable across Trip.com’s flights and hotels.

Get the Trip.com deal ↗

FAQ

Which eSIM is cheapest after the code?

A week of unlimited data: Nomad, $25.00.
Two weeks of unlimited data: Nomad, $39.00.
A month of unlimited data: Yesim, $64.26 with code ROAM15.
5 GB for 30 days: Yesim, $11.22 with code ROAM15.
10 GB for 30 days: Ubigi, $15.30 with code ROAMTESTED.
20 GB for 30 days: Nomad, $22.00.

Every price is in the tables above.

Can I use these codes if I’ve bought from the brand before? Yesim’s code ROAM15 is for new users only, Saily’s ROAMTESTED is for new customers, TooSim’s ROATSM10 is for new customers, and Ubigi’s ROAMTESTED is for first-time buyers’ first one-off or annual plan purchase only (never monthly plans or top-ups).

Do I still get Quibity’s cashback if I use the code? Yes. When I checked CHOFQZJF at Quibity’s checkout on 2 November 2026, the 7-day unlimited plan went from $42.00 to $39.90, and the order still earned $2.00 of cashback as Quibity credit.

What if a code doesn’t work? Check you’ve typed it exactly, then check its terms: ROAM15 only works for new Yesim users, ROAMTESTED for new Saily customers, and ROATSM10 for new TooSim customers. At Quibity, try one of its other 5% codes instead: CHOKUSDQ or CHOPRMCI.