SIM Card Adoption Behaviour in India

Research/SIM Card Adoption Behaviour in India
HHercules Consumer research

Usage & attitude study

SIM Card Adoption Behaviour in India

In a Hercules survey of 995 weighted mobile users across India's four regions, Reliance Jio leads primary SIM share at 49.4%, 71.5% keep a second SIM and 5G is on 56.9% of primary SIMs. Loyalty is weak. 73.7% say they are likely to switch provider within three to six months.

Explore the findings
49.4%Jio Primary ShareNearly double Airtel at 26.0%
995 respondentsPrepared by Hercules InsightsUsage & attitude study
Jio Primary Share49.4%

Nearly double Airtel at 26.0%

Second SIM71.5%

Keep more than one active connection

5G Adoption56.9%

Network technology on the primary SIM

Based on 995 completed responses. Usage & attitude study.

01 / Executive summary

What we set out to answer, and what we found

After the tariff hikes, what actually holds a mobile customer?

01

Where does primary SIM share sit now?

We mapped which operator holds the connection used most often for data and voice, and how that changes across monthly spend tiers.

02

How normal is a second SIM?

We measured how common multi-SIM use is, and whether it rises with spend.

03

How far has 5G spread, and how good is the service?

We tracked the network technology on the primary SIM and the network issues users had in the last 30 days.

04

How have tariff hikes affected loyalty?

We tested reactions to recent tariff increases, along with switching intent and advocacy.

The top findings

Jio has moved up-market. Reliance Jio started as the budget disruptor and now leads the premium tiers. It holds 49.4% of primary SIM share overall and 55.8% in the ₹501 to ₹1,000 spend tier, 6.4 points above its average.

The ₹201 to ₹500 tier is the biggest churn risk. It has the highest 5G adoption (60.9%) but the lowest satisfaction, with only 13.2% reporting no network issues against 19.8% in the ₹501 to ₹1,000 tier.

5G is now the minimum. 5G is on 56.9% of primary SIMs, and mid-tier spenders have adopted it more than the highest spenders (60.9% vs 58.4%). Without 5G, a provider will struggle to hold mid-market customers.

Network performance decides the next fight. High-value users stay unhappily. They are 25% more likely to remain with their provider despite tariff hikes, but 1.3 times more likely to report gaming latency.

A second SIM is a backup. 71.5% keep a second SIM, rising to 74.8% among those spending over ₹1,000 a month, who use it to cover for primary network failures.

73.7%

Switching Intent

Likely or highly likely to port within 3 to 6 months

02 / Provider share

Jio holds 49.4% of primary SIMs, nearly double Airtel

Primary SIM provider

Base: 995 respondents (weighted)

View the data behind this chart
Primary SIM provider (Base: 995 respondents (weighted))
AnswerShare
Reliance Jio49.4%
Airtel26%
Vi (Vodafone Idea)14.7%
BSNL9%

Primary provider share by monthly spend

% of each spend tier (n=175, 345, 249, 226)

View the data behind this chart
Primary provider share by monthly spend (% of each spend tier (n=175, 345, 249, 226))
Reliance JioAirtelViBSNL
Under ₹20034.8%26.8%22.2%15.4%
₹201 to ₹50054.2%26.1%11.9%6.4%
₹501 to ₹1,00055.8%25.7%12%5.6%
Above ₹1,00046.5%25.7%15.9%11.9%

01. Jio leads at 49.4%, nearly double Airtel at 26.0%. Vi holds 14.7% and BSNL 9.0%.

02. In the ₹501 to ₹1,000 bracket Jio holds 55.8%, 6.4 points above its overall average. In the budget segment under ₹200 its lead over Airtel narrows to 8 points, and BSNL is at its strongest there with 15.4%.

03. Airtel sits at roughly 26% in every spend level, so it is not gaining extra share in the higher-value segments.

03 / Dual SIM

71.5% keep more than one active SIM

Maintain a secondary SIM

Base: 995 respondents (weighted)

View the data behind this chart
Maintain a secondary SIM (Base: 995 respondents (weighted))
AnswerShare
More than one SIM71.5%
Single SIM28.5%

Secondary SIM adoption by monthly spend

% of each spend tier

View the data behind this chart
Secondary SIM adoption by monthly spend (% of each spend tier)
AnswerShare
Under ₹20068.6%
₹201 to ₹50071.6%
₹501 to ₹1,00070.3%
Above ₹1,00074.8%

01. 71.5% maintain more than one active connection. Only 28.5% rely on a single SIM.

02. Adoption peaks at 74.8% among those spending above ₹1,000 a month and is lowest at 68.6% under ₹200. The mid-market tiers sit around 71%.

03. That 6.2-point gap means the most profitable customers are the most likely to split their spend across providers.

04 / 5G adoption

5G reaches majority status at 56.9% of primary SIMs

Network technology on the primary SIM

Base: 995 respondents (weighted)

View the data behind this chart
Network technology on the primary SIM (Base: 995 respondents (weighted))
AnswerShare
5G56.9%
4G / LTE29.5%
3G / 2G6.83%
Unsure6.73%

5G adoption by monthly spend

% of each spend tier

View the data behind this chart
5G adoption by monthly spend (% of each spend tier)
AnswerShare
Under ₹20043.4%
₹201 to ₹50060.9%
₹501 to ₹1,00060.2%
Above ₹1,00058.4%

01. 56.9% use 5G on their primary SIM and nearly 30% remain on 4G/LTE. 13.5% are on legacy 3G/2G or unsure of their connection type.

02. Adoption peaks in the ₹201 to ₹500 tier at 60.9%, ahead of the highest spenders at 58.4%.

03. The lowest spenders are the slowest to move. 22.3% are on legacy technology or unsure, and their 5G adoption of 43.4% trails by about 15 points. The report links this to device costs, and not to service availability.

05 / Network issues

Slow data speeds hit 32.3%, and the mid-tier is worst served

Network issues experienced in the last 30 days

Base: 995 respondents (weighted), multi-select

View the data behind this chart
Network issues experienced in the last 30 days (Base: 995 respondents (weighted), multi-select)
AnswerShare
Slow data speeds32.3%
High latency or ping (gaming issues)27.4%
Poor indoor coverage25.6%
Call drops23.3%
Delayed SMS or OTPs22.8%
No issues experienced24%

01. Slow data speeds affect 32.3% of respondents, and only 24.0% report no issues. Over three-quarters face at least one service problem.

02. The ₹201 to ₹500 tier is the worst served, with only 13.2% reporting no issues against 19.8% in the ₹501 to ₹1,000 tier.

03. High latency makes up 17.5% of issues reported by those spending above ₹1,000 against 14.4% for the lowest spenders. The report reads high-value customers as 1.3 times more likely to report gaming latency.

04. Only 17% of Jio users report slow data speeds, against a market average of 32%. Indoor coverage itself scores well, with 76.0% rating it 4 or 5 out of 5.

06 / Tariff hikes

Unhappy loyalty (26.3%) is the largest reaction to tariff hikes

Effect of recent recharge tariff increases

Base: 995 respondents (weighted)

View the data behind this chart
Effect of recent recharge tariff increases (Base: 995 respondents (weighted))
AnswerShare
Unhappy but staying26.3%
Reduced data usage25.6%
Planning to switch (MNP)24.2%
No effect23.8%

Reaction to tariff hikes by monthly spend

% of each spend tier

View the data behind this chart
Reaction to tariff hikes by monthly spend (% of each spend tier)
Unhappy but stayingReduced usagePlanning to switchNo effect
Under ₹20021.7%28%23.4%26.9%
₹201 to ₹50027.8%25.2%24.1%22.9%
₹501 to ₹1,00027.3%24.5%26.1%22.1%
Above ₹1,00026.5%25.7%23%24.8%

01. Reactions are split. 26.3% are unhappy but staying, 25.6% have reduced data usage and 24.2% are planning to switch via MNP.

02. Low spenders react most to price, with 28.0% cutting usage. Spenders from ₹201 upward show the most unhappy loyalty (average 27.1%).

03. Customers above ₹1,000 a month are 22% more likely to be unhappily loyal than low spenders. They stay because leaving is a hassle, and brand affinity plays little part.

07 / Switching intent

73.7% are likely to switch provider within 3 to 6 months

Likelihood of porting the primary number in the next 3 to 6 months

Base: 995 respondents (weighted); 1 = very unlikely, 5 = highly likely

View the data behind this chart
Likelihood of porting the primary number in the next 3 to 6 months (Base: 995 respondents (weighted); 1 = very unlikely, 5 = highly likely)
AnswerShare
13.72%
26.93%
315.7%
439%
534.7%

01. Top-two-box switching intent is 73.7%. 39.0% are likely and 34.7% highly likely to switch.

02. Customers spending above ₹1,000 show the highest overall intent at 74.8%. Those under ₹200 have the most definite switchers (39.4% scoring 5).

08 / Advocacy paradox

Strong advocacy (75.0%) does not prevent switching

Likely to recommend (4 or 5 out of 5) by monthly spend

% of each spend tier; overall 75.0% (n=993)

View the data behind this chart
Likely to recommend (4 or 5 out of 5) by monthly spend (% of each spend tier; overall 75.0% (n=993))
AnswerShare
Under ₹20069.5%
₹201 to ₹50075.4%
₹501 to ₹1,00073.4%
Above ₹1,00077.8%

01. Advocacy is strong at 75.0% top-two-box, with 40.0% rating 4 and 35.0% giving a perfect 5. Only 8.0% are detractors.

02. In the ₹201 to ₹500 tier, 32.5% give a top score of 5, which is 5.4 points below the lowest spenders (37.9%).

03. 38.2% of promoters (341 of 893) are planning to port, and 614 respondents who are highly likely to recommend are also highly likely to switch (chi-square 1,480.01, p < 0.001, Cramér's V 0.61). Only 1.0% (n=9) are true detractors.

09 / From insight to action

What we would recommend

Practical priorities drawn from this study for further validation.

01

Protect the mid-tier 5G customer.

Put network stability first for the ₹201 to ₹500 segment. It has the highest 5G adoption (60.9%) but the lowest satisfaction, with only 13.2% reporting no issues.

02

Sell 5G as a standard utility and not an add-on.

High-value Jio users already treat 5G as a given (they value Unlimited 5G 17 points less than the general population). Messaging should move to reliability and latency-specific uses such as cloud gaming.

03

Fix network performance to keep high-ARPU users.

Unhappily loyal high spenders are 1.3 times more likely to report gaming latency. Technical KPIs will keep them better than price incentives.

04

Turn secondary SIMs into primary data connections.

74.8% of high spenders keep a second SIM as a backup. Challengers can offer data-only failover packs, and leaders should fix indoor coverage so customers no longer need a second network.

05

Build on the lead in high-spend segments.

Jio can use its 55.8% share of the ₹501 to ₹1,000 tier, and its edge on data speed (17% reporting slow speeds vs a 32% market average), to bundle premium digital services.

Study notes

How to read this report

995completed responses
Usage & attitude studystudy design
Hercules Insightsprepared by

Total sample of 995 respondents, weighted to reflect the broader consumer landscape. Subgroups below n=30 are flagged in the report and should be interpreted with caution.

Source: Hercules Insights Report, “SIM Card Adoption Behaviour in India” (March 2026). Figures are as reported in the source study and describe this sample; they do not establish that the sample is representative or that stated intent will convert into purchases.

Frequently asked questions

How large was the sample?
995 weighted respondents across North, South, West and East/Central India. 74% were prepaid and 26% postpaid, and 84% were aged 18 to 44.

Which operator leads the market?
Reliance Jio, with 49.4% of primary SIM share, nearly double Airtel at 26.0%. Vi follows at 14.7% and BSNL at 9.0%. Jio is strongest in the ₹501 to ₹1,000 tier at 55.8%.

How far has 5G spread?
5G is on 56.9% of primary SIMs. Nearly 30% remain on 4G/LTE, and 13.5% use legacy 3G or 2G or are unsure. Adoption peaks in the ₹201 to ₹500 tier at 60.9%.

What is the biggest churn risk?
Customers leaving for another provider. Switching intent is 73.7% top-two-box and highest (74.8%) among those spending above ₹1,000 a month. Even 38.2% of promoters plan to port, so advocacy does not protect revenue.

Source report

SIM Card Adoption Behaviour in India

Research by

Hercules.

JupiterMeta Labs