At present, dual SIM can be used in almost all mobile phones. This feature exists in almost all smartphones. There are many benefits to using dual SIM. If you want to know if your Oppo Reno8 smartphone is Dual SIM supported, then read this post to learn more.
Yes, your Oppo Reno8 supports dual SIM. You can use two SIMs simultaneously on your phone. However, it would help if you used nano-size SIM in this phone.
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