Dual SIM lets a traveller use a Chile eSIM for mobile data while keeping the primary SIM installed. The key is to assign each line deliberately and prevent automatic fallback to expensive roaming.
Keeping a home number active can help receive messages, but calls, SMS and roaming charges remain governed by the home carrier.
NoveSIM Chile eSIMs are data-only. We do not provide a local number, conventional calls or SMS.
Quick answer: Select the Chile eSIM for mobile data, disable data roaming on the primary SIM and turn off automatic data switching. Keep the primary line active only if you understand its carrier charges.
Top Chile eSIMs
Chile eSIM
Fixed
1 GB, 7 days€ 4.882 GB, 15 days€ 7.993 GB, 30 days€ 11.09Unlimited
Unlimited, 1 day€ 6.21Unlimited, 3 days€ 15.53Unlimited, 5 days€ 25.29
Assign each line a role
- Chile eSIM: mobile data.
- Primary SIM: existing number when needed.
- Internet apps: calls and messages over the Chile data connection.
Configure Dual SIM
- Label both lines clearly.
- Select the Chile eSIM for data.
- Enable roaming on the eSIM when required.
- Disable roaming on the primary SIM.
- Turn off automatic data switching.
Use the iPhone guide or Android guide for device menus.
Keep messaging apps working
Apps such as WhatsApp can normally continue using the existing account over the travel data line. Do not change the registered number unless you intend to migrate the account.
Avoid surprise charges
Receiving or placing carrier calls may incur roaming charges. Check the home-carrier terms and read the Chile roaming guide.
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FAQ
Can I keep my normal SIM active in Chile?
Yes on a compatible Dual-SIM phone, but home-carrier charges can still apply.
Which SIM should use mobile data?
Select the Chile eSIM and disable automatic data switching.
Will WhatsApp keep my number?
Usually yes; the app can use travel data without changing its registered number.
Should roaming be enabled on both lines?
No. Enable it on the travel eSIM when required and keep it off on the primary SIM unless intentionally used.
Final Recommendation
Give each SIM one clear role.
Use the Chile eSIM for data and prevent automatic fallback.
Keep the primary line active only after checking its roaming costs.