How the finder decides
- Bands first: only models that carry your operator’s bands are shown (Jio 850/2300 MHz; Airtel 900/2300 MHz; Vi and BSNL 900/2100 MHz, plus shared 1800 MHz).
- Then size: rated coverage is reduced for weak outdoor signal — 0–1 bar needs about twice the rated area, 2 bars about a third more.
- Then accessories: floors, basements, villages and large areas add splitters, extra indoor antennas, an LPDA antenna or LMR-400 cable.
- Results use live SIGLIFT product data. Share the link or send it on WhatsApp for a free check and price.
How does the signal booster finder work?
The finder follows the same three-step process our signal experts use on the phone:
- Band match. A booster only amplifies the frequencies it is built for. The finder keeps only SIGLIFT models that carry a band your operator uses. If you pick more than one operator, it looks for a model that fits all of them — and tells you when one model can’t.
- Coverage sizing. Rated coverage (“up to 3,000 sq.ft”) assumes a strong outdoor signal. With 2 bars outside, the finder allows about a third more headroom; with 0–1 bar, it looks for a model rated at roughly twice your area and suggests a directional antenna.
- Accessories. Multiple floors need a splitter and one indoor antenna per floor; basements and rural homes usually need a longer run of low-loss LMR-400 cable; distant towers need an LPDA outdoor antenna.
It’s a starting point, not a site survey. Walls, glass, floor layout and the exact band in your telecom circle all matter — which is why the result includes a one-tap WhatsApp button to have an expert confirm it for free.
How do I check which band my operator uses?
Operators use different bands in different circles, so it helps to confirm yours:
- Android: open Settings → About phone → SIM status to see network type and signal. For the band, many phones show it in the hidden menu at
*#*#4636#*#*(Phone information), or you can use a free cell-info app that displays the LTE band number. - iPhone: dial
*3001#12345#and press call to open Field Test mode; the serving cell information shows the frequency band indicator. - Easiest: take a screenshot of whatever your phone shows and send it to us on WhatsApp — we’ll read the band for you.
Operator band reference (typical allocations)
| Operator | Bands commonly used | Band numbers |
|---|---|---|
| Jio | 850, 1800, 2300 MHz | Band 5, Band 3, Band 40 |
| Airtel | 900, 1800, 2100, 2300 MHz | Band 8, Band 3, Band 1, Band 40 |
| Vi | 900, 1800, 2100 MHz | Band 8, Band 3, Band 1 |
| BSNL | 900, 2100 MHz | Band 8, Band 1 |
Band usage varies by circle. 5G uses separate bands (such as 3,500 MHz) that these kits don’t amplify — but 5G phones still benefit, because calls use 4G/VoLTE and phones fall back to 4G indoors.
Example recommendations
- Jio only · 2BHK (1,000–2,000 sq.ft) · 3+ bars outside → SL-850B (850/1800/2100 MHz, up to 2,000 sq.ft). No accessories needed.
- Jio + Airtel · 1,000–2,000 sq.ft · 3+ bars → SL-1823B, which carries 1800 and 2300 MHz — bands both networks use.
- Airtel + Vi · 2,000–3,000 sq.ft office · 3+ bars → SL-900MB (900/1800/2100 MHz, up to 3,000 sq.ft).
- Jio + Airtel · village home, 1,000–2,000 sq.ft · 0–1 bar → an SL-8518-23 series model (850/1800/2300 MHz, up to 5,000 sq.ft) with an LPDA outdoor antenna and LMR-400 cable, because weak outdoor signal roughly halves usable coverage.
Try your own combination above — the result updates as soon as you change an answer.
How to read your result
- Strong fit means the model carries the key band our operator pages use for that network (for example 850 or 2300 MHz for Jio).
- Partial fit means it carries some of that operator’s bands (such as the shared 1800 MHz layer) but not its main one. It may work well in your circle — ask us to confirm.
- Rated coverage is the model’s maximum with good outdoor signal. The finder already allows for your bars outside.
- Accessories are suggestions based on floors and building type — you can always start with the kit alone and add them later.
When should I talk to an expert instead?
- You need to cover three or four operators equally — offices sometimes need two boosters with different bands.
- The area is above 10,000 sq.ft or spread across several buildings.
- You get no signal at all on the roof — a booster needs something to amplify.
- The only good signal is far from where the booster will sit (long cable runs).
Not sure how many bars you really have? Measure it in dBm with our signal strength checker. For the full buying checklist, read how to choose a mobile signal booster, and for budgeting see the network booster price guide.
Why trust the recommendation?
The finder uses the same product data as our model comparison — frequencies and rated coverage for every SIGLIFT kit. Behind it is a team that has completed 9,800+ installations across 19+ states and UTs. Every kit ships with free delivery, cash on delivery, 10-day returns and a 1-year warranty, so if the model doesn’t suit your location, you’re covered.
