The 5G icon is lying to you — at least some of the time
This is one of those things that sounds ridiculous until someone explains it clearly, and then you can't unsee it. You're on a 5G phone. The status bar shows 5G. You open YouTube and the video buffers. You open Google Maps and it takes a second longer than expected. You run a speed test and the result is... 35 Mbps. That's barely faster than what you got on 4G two years ago.
What's going on? Is your phone faulty? Is Jio throttling you? Is the 5G signal weak?
None of the above — or rather, the answer is more interesting than any of those explanations. The problem is that "5G" is not one thing. It's at least three completely different technologies that all use the same name and the same icon on your status bar. Depending on which version of 5G your phone is connected to at any given moment, the experience ranges from genuinely transformative to barely any different from 4G — with extra battery drain as a bonus.
5G has three tiers — and most Indian users are on the slowest one
The three versions of 5G are called low-band, mid-band, and high-band (also called mmWave). They're not variations of the same technology — they behave so differently that calling them all "5G" is a bit like calling a bicycle, a motorcycle, and an airplane all "vehicles" on your traffic status screen.
High-band mmWave 5G is the version in the advertisements. Frequencies above 24 GHz, theoretical speeds over 1 Gbps, near-zero latency. This is real — but it has a catastrophic weakness: it can't penetrate walls. It can barely travel 200-300 metres in open air before the signal degrades. It can't get through heavy rain. You'd need hundreds of small cell towers in every city block to make it work at scale. In India, mmWave 5G deployment is essentially non-existent for consumer use as of 2026.
Mid-band sub-6 GHz 5G is the version most serious 5G countries are building out. Frequencies between 1 GHz and 6 GHz, real-world speeds of 100-700 Mbps depending on congestion and location. Jio and Airtel's 5G in major Indian cities — Chennai, Bangalore, Mumbai, Delhi, Hyderabad — is primarily in this band. When you're in a strong mid-band 5G coverage area, this is genuinely fast. Downloading a large app, streaming 4K video, or uploading a Reels video in seconds — mid-band delivers noticeably better than 4G.
Low-band 5G is where things get deceptive. Operating below 1 GHz, this version gives you excellent range and wall penetration — carriers love it for covering large geographic areas cheaply. Speeds in real-world use: 50-100 Mbps. Research from Nokia shows low-band 5G performance is only incrementally better than 4G LTE. But it shows the same 5G icon on your phone. In tier-2 and tier-3 Indian cities, and in suburban areas around metro cities, low-band 5G is likely what your phone is connecting to — and you'd be hard-pressed to tell it apart from good 4G in daily use.
Why 5G is draining your battery faster — the dual connection problem
This is the part that most people don't know and is genuinely frustrating once you understand it. Most 5G networks currently deployed in India are called NSA — Non-Standalone 5G. NSA means the 5G network still uses the 4G LTE infrastructure for control signals (managing your connection, authentication, routing) while using 5G only for actual data transmission.
What does this mean for your phone? It means your phone's modem has to maintain two simultaneous radio connections — one 4G and one 5G — at the same time. You're running two radios instead of one. Studies have consistently measured 5G draining 6-11% more battery than 4G LTE in equivalent use conditions. In areas where your phone is struggling to maintain a 5G signal — hunting between towers, moving between coverage zones — that drain can be significantly higher because the modem ramps up power to try to maintain the connection.
This is why your 5G phone can feel warm in your hand after a few hours and die faster than your old 4G phone did. It's not your imagination and it's not a defective battery. It's the modem doing twice the work for the same or similar data speeds.
The fix for this is called Standalone 5G (SA) — where the 5G network handles everything itself without leaning on 4G infrastructure. SA 5G is significantly more battery efficient. Ookla's data indicates SA 5G can deliver up to 3 hours more battery endurance compared to NSA. Jio and Airtel are gradually rolling out SA 5G capability in India, but as of 2026 most coverage is still NSA.
When 5G is genuinely worse than 4G — the signal hunting problem
Here's a scenario many Indian users experience without realising what's happening. You're traveling by metro in Chennai or Bangalore. Your phone shows 5G in the station, then the icon flickers to 4G in the tunnel, then back to 5G at the next station. You notice the phone feels warm and the battery has dropped noticeably during a 30-minute commute where you barely used your phone.
What happened: your phone's modem was constantly switching between 5G and 4G as coverage changed, and every time it searched for and re-acquired a 5G signal, the modem spiked its power consumption. This signal hunting is one of the biggest contributors to 5G battery drain in Indian cities where coverage is still patchy — which is most Indian cities outside the core areas of the major metros.
In some cases, the 5G and 4G signals actually interfere with each other in the NSA configuration, meaning your phone is getting a smaller effective share of the spectrum than it would on a dedicated 4G connection. So not only is the battery draining faster, but the actual data speeds can be lower than what you'd get on a clean 4G LTE connection.
How to actually fix this — practical steps for Indian phones
The most immediately effective fix is switching your phone to 4G/LTE only mode in areas where your 5G coverage is weak or patchy. On most Android phones running Android 14 or later, go to Settings, then Network and Internet (or Connections on Samsung), then Mobile Networks, then Preferred Network Type, and select 4G/LTE Only or LTE/HSPA+. On iPhone, go to Settings, Cellular, Cellular Data Options, Voice and Data, and select LTE.
This sounds counterintuitive — you're downgrading your connection on purpose. But in practice, 4G LTE on a strong signal is faster for daily tasks than low-band 5G on a weak signal, and your battery will last 1-2 hours longer over a full day. The sweet spot: keep 5G enabled when you're in known good coverage areas — Jio True5G or Airtel 5G Plus zones in city centres — and switch to 4G when you're commuting, in suburban areas, or anywhere your 5G icon looks like it's constantly flickering.
Most Android phones have a setting called 5G Auto or Adaptive 5G — this is supposed to automatically switch between 5G and 4G based on what's available and what's better for battery. The implementation quality varies. On Pixel phones and newer Samsung Galaxy devices, this works reasonably well. On budget 5G phones in the ₹15,000-25,000 range where the modem is less sophisticated, manual 4G selection is often more effective.
iPhone users get "5G Auto" in the Cellular Data Options menu — Apple's implementation switches to 4G whenever 5G isn't significantly better or when battery saving is prioritised. This is actually one of the better implementations and is worth enabling if you haven't already.
When should you actually use 5G in India?
Leave 5G enabled in these situations: you're in a Jio True5G or Airtel 5G Plus zone in a major city centre, you're downloading large files or doing something that actually benefits from faster speeds, or you're in a stadium, mall, or airport that has good mid-band 5G coverage.
Switch to 4G in these situations: you're commuting (metro, bus, train between cities — spotty coverage causes more drain than staying on 4G), you're in a suburban area or tier-2 city where 5G coverage is primarily low-band, your battery is below 40% and you need it to last, or you're making a long phone call (voice calls on NSA 5G often drop to 4G anyway, and the transition back and forth wastes power).
For daily UPI payments, WhatsApp, Instagram browsing, and Swiggy orders — the actual tasks most Indian smartphone users are doing most of the time — 4G is fast enough that you'll never notice the difference. The 5G speeds genuinely matter for downloading apps, video conferencing on a mobile connection, or uploading content. For everything else, 4G and a longer battery life is the better trade.
TamilTech's take
The 5G marketing in India has been genuinely misleading. Jio and Airtel both launched "True5G" with significant advertising suggesting that having a 5G phone in a 5G area means gigabit-speed internet. For most Indian users in most Indian locations most of the time, that's not the experience because low-band 5G is doing the coverage work and NSA architecture is doing the battery drain. The honest truth: for a typical Indian smartphone user who does WhatsApp, YouTube, Instagram, UPI, and some streaming, a 4G phone on a good Jio or Airtel 4G signal in 2026 will feel faster in daily use than a 5G phone on a weak low-band 5G connection — and will last longer on a charge. 5G is genuinely better when the coverage is right. The problem is that "the coverage is right" applies to less of India than the advertisements suggest. Check your own usage patterns before you assume the 5G icon means you're actually getting 5G performance.
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