The telecom industry in India and across the globe has undergone a massive shift from 4G to 5G networks. With telecom giants like Jio, Airtel, Vodafone-Idea (Vi), and BSNL rolling out 5G services across cities in 2025, the question most users ask is: “How do I upgrade from my old 4G SIM to a 5G SIM?”
This comprehensive guide will explain everything from compatibility checks and SIM upgrade steps to costs, offers, FAQs, and troubleshooting tips.
Why Upgrade from 4G SIM to 5G SIM?
Before jumping into the upgrade steps, it’s important to understand why moving to a 5G SIM matters.
- Faster Speeds: 5G offers speeds up to 10 Gbps, nearly 10–20x faster than 4G.
- Low Latency: Response times as low as 1 ms, ideal for gaming, AR/VR, and real-time applications.
- Better Connectivity: Handle more devices simultaneously crucial for smart homes and IoT.
- Future-Proofing: 5G networks are the future of mobile internet, with 6G research already in motion.
- Enhanced Call Quality: 5G SIMs support VoNR (Voice over New Radio) for crystal-clear calls.
Step 1: Check if Your Phone Supports 5G
Upgrading your SIM alone is not enough your smartphone must support 5G bands.
- Android: Go to Settings > Network & Internet > Mobile Network > Preferred Network Type. If you see 5G listed, your phone is 5G-ready.
- iPhone: All iPhone models from iPhone 12 onwards support 5G.
- Samsung, OnePlus, Xiaomi, Vivo, Oppo, Realme: Almost all mid-range and flagship models launched after 2022 are 5G-ready.
Pro Tip: Even if your phone is 5G-enabled, ensure it supports the right frequency bands used by your operator (Jio n28, n78; Airtel n78; Vi n78; BSNL upcoming).
Step 2: Check if Your Operator Offers 5G in Your Area
Not every region in India has 5G yet.
- Jio 5G: Pan-India coverage expected by end of 2025.
- Airtel 5G Plus: Covers all metro cities and expanding to tier-2 and tier-3 towns.
- Vi 5G: Still limited rollout in select cities.
- BSNL 5G: Launch expected in phases by late 2025.
Visit your operator’s official website or app to check coverage maps before upgrading.
Step 3: Ways to Upgrade from 4G SIM to 5G SIM
1. Upgrade via Retail Store (Most Common)
- Visit the nearest telecom operator store (Jio Digital Store, Airtel Store, Vi Store, BSNL CSC).
- Carry a valid ID proof (Aadhaar, Driving License, Passport).
- Fill a SIM upgrade request form.
- Provide biometric verification (fingerprint scan).
- Receive a new 5G-enabled SIM card.
- Insert it into your phone and wait for activation.
Activation Time: Usually 2–4 hours, sometimes up to 24 hours.
2. Online Request for 5G SIM
- Open your operator’s official app (MyJio, Airtel Thanks, Vi App, BSNL SelfCare).
- Go to SIM Upgrade / SIM Replacement option.
- Enter your address for SIM delivery.
- Provide KYC documents during delivery.
- Insert SIM once delivered and wait for activation.
3. SIM Replacement via Home Delivery (Premium Service)
Some operators in 2025 offer VIP home delivery of 5G SIMs for premium customers.
- Schedule via customer care helpline or mobile app.
- A representative visits your home for KYC verification.
- SIM is handed over instantly.
4. eSIM Upgrade (Digital SIM)
If you don’t want a physical SIM:
- Check if your phone supports eSIM (iPhone XS and above, Samsung Galaxy S20+, Pixel 4+).
- Go to your operator’s app and request an eSIM upgrade.
- You’ll receive a QR code to scan under Settings > Mobile Data > Add Data Plan.
- Your 4G eSIM converts to a 5G eSIM without visiting a store.
Step 4: Verify Your SIM Upgrade
Once you receive your new SIM:
- Insert the SIM in SIM slot 1 (most phones support 5G on the primary slot only).
- Restart your device.
- Go to Settings > Network > Mobile Network > Preferred Network Type and enable 5G.
- Open the Speedtest app to confirm you are connected to 5G.
Cost of Upgrading to a 5G SIM in 2025
| Operator | SIM Upgrade Cost | Activation Time | Extra Benefits |
|---|---|---|---|
| Jio | Free or ₹50 (depends on store) | 2–4 hours | Welcome 5G data trial packs |
| Airtel | ₹50–₹100 | 2–6 hours | Free 5G trial data in select cities |
| Vi | ₹100 | 4–24 hours | Cashback offers on recharge |
| BSNL | Expected free | TBD | Launch offers under BharatNet scheme |
Common Issues During 4G to 5G SIM Upgrade
- SIM not working after upgrade: Ensure you inserted in SIM 1 slot.
- No 5G signal: Your area may not have 5G coverage yet. Switch back to 4G until available.
- Activation delay: Sometimes SIM takes up to 24 hours. If longer, call customer care.
- Phone heating/battery drain: Normal in initial days; update to latest firmware.
Tips to Maximize 5G Experience
- Use Dual SIM smartly: Keep 5G SIM in primary slot.
- Update APN settings: Refresh via Settings > Mobile Network > Access Point Names.
- Switch to 5G recharge plans: Most operators offer separate 5G data packs.
- Keep OS updated: Firmware updates improve 5G stability.
- Battery optimization: 5G consumes more power; use adaptive battery settings.
Safety & Security Considerations
- Always upgrade SIMs from authorized stores or apps avoid third-party sellers.
- Ensure KYC is done with your own Aadhaar/ID to avoid misuse.
- Dispose of old SIM responsibly destroy the chip to prevent SIM cloning.
Future of 5G in India (2025–27 Outlook)
- Standalone 5G (SA 5G): Jio is leading in building pure 5G networks without relying on 4G infrastructure.
- 5G for IoT: Smart homes, autonomous vehicles, and industrial IoT to rely heavily on 5G SIMs.
- Satellite + 5G Integration: Expected by 2026 to provide coverage in remote areas.
- 6G Trials: India is targeting 6G trials by 2027, making 5G SIM upgrades the stepping stone.
Frequently Asked Questions (FAQs)
Q1. Do I need to change my number when upgrading to a 5G SIM?
No. Your mobile number remains the same. Only the SIM technology changes.
Q2. Can I use a 5G SIM in a 4G phone?
Yes, but you’ll only get 4G speeds until you switch to a 5G phone.
Q3. How long does a 5G SIM take to activate?
Usually 2–4 hours, but can take up to 24 hours in some cases.
Q4. Is upgrading to a 5G SIM free?
It depends on your operator. Jio often provides it free, Airtel and Vi may charge nominal fees.
Q5. Will 5G increase my data bills?
Not necessarily. Plans are priced competitively, but 5G may lead to higher data usage due to faster speeds.
Quick Checklist for SIM Upgrade
- ✅ Check phone compatibility for 5G.
- ✅ Verify coverage in your area.
- ✅ Visit operator store or app for SIM upgrade.
- ✅ Complete KYC with valid ID.
- ✅ Insert SIM in slot 1 and enable 5G.
- ✅ Run speed test to confirm.
Final Thoughts
Upgrading from a 4G SIM to a 5G SIM in 2025 is simple, affordable, and necessary to stay connected in today’s fast digital world. With operators like Jio, Airtel, Vi, and BSNL expanding coverage rapidly, upgrading ensures you enjoy blazing-fast speeds, better call quality, and future-proof connectivity.
Whether you choose to upgrade via store, online request, or eSIM, the process is smooth and takes just a few hours. Don’t wait future-ready your number today.