What Is Band Frequency in a Smartphone?
📡 Why Is Band Frequency Important?
It determines which network types (like 4G or 5G) your phone can connect to.
It affects signal strength, call quality, and internet speed.
If your phone doesn’t support the right bands for your region or carrier, you may experience no signal, slow data, or no 5G access.
| Network Type | Commom Bands Used | Frequency Range |
| 2G（GSM） | Band 2, 3, 8 | 850 / 900 / 1800 MHz |
| 3G（WCDMA） | Band 1, 5, 8 | 850 / 2100 MHz |
| 4G（LTE） | Band 1, 3, 5, 40, 41 | 1800 / 2300 MHz (India) |
| 5G | n78, n41, n1, n77 | 3300–3800 MHz (Sub-6GHz), others vary |
Note: Supported bands vary by smartphone model and region.
🔍 How to Check Which Bands Your Phone Supports
Check Specs on OPPO’s Official Website
Look under the “Network” section for your model.
Dial *#06# to get your IMEI, then search online for supported bands by model number.
Ask Your Network Provider for the bands used in your area and match them with your phone's specs.
🛠 Need Help?
If you’re unsure which bands your OPPO phone supports or why you're not getting 5G or 4G, contact your network provider or visit your nearest OPPO Service Center.