Answers customers, sells and gives you your time back
WhatsApp chatbot for cell phone stores in Brazil, with the CRM included
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
Phone prices, installments and trade-ins with a down payment are negotiated on WhatsApp all day long. The agent answers the terms you defined and leaves each offer logged, instead of scattered across loose conversations.
See the AI agent demos and the CRM with store examples.
What is the best WhatsApp chatbot for cell phone stores in Brazil?
The best WhatsApp chatbot for cell phone stores in Brazil is the one that answers on the number the store already uses, with business rules written by you. A WhatsApp AI agent for a cell phone store is CertuAI's automated assistant, which answers the price range by model, installment terms, the trade-in rule with a down payment, the warranty on new and used devices and the price of repair services, and logs each offer in the CRM with the model the person is looking for.
Summary in 7 facts
- Phone prices, installments and trade-ins with a down payment are negotiated on WhatsApp all day long.
- The agent answers the terms you defined and leaves each offer logged, instead of scattered across loose conversations.
- See the AI agent demos and the CRM with store examples.
- The best WhatsApp chatbot for cell phone stores in Brazil is the one that answers on the number the store already uses, with business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday shop situations before and after the CertuAI agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes in the shop with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday shop situations before and after the CertuAI agent.
TodayPhone price questions arrive all day and hold up whoever is selling at the counter
With CertuAIThe agent answers right away, with the terms you keep up to date
TodayTrade-in offer arranged by message and forgotten in the middle of the conversation
With CertuAIModel, condition and desired value logged as a deal in the CRM
TodayEach salesperson answers the installment terms from memory
With CertuAIThe same terms go out to everyone, and you update them in one place
TodayQuote given and never followed up
With CertuAIDeal open with a follow-up task, instead of a lost conversation
What does a conversation handled by the AI look like?
Example conversation
The shop's AI agent
Customer: How much is the iPhone 13 128 GB?
AI agent: The iPhone 13 128 GB is your price upfront. I can also give you the installment and Pix prices.
Customer: Do you accept my used phone as a trade-in?
AI agent: Tell me the model of your used phone, how the screen and battery are, and how much you expect. I'll log everything for the offer.
Is an AI agent or manual customer service better for cell phone stores?
The agent wins on repeated tasks, and the person keeps winning on anything that takes judgment. With manual service, someone at the shop has to stop what they are doing; with the CertuAI agent, the reply goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Price and installments by model | Repeated dozens of times a day, between one sale and the next | Answered right away, with the terms you keep up to date |
| Trade-in offer with a used phone | Negotiated in scattered conversations, with no record of what was offered | The agent collects model, condition and expectation and leaves the deal open in the CRM |
| Warranty on used phones | Explained again to every customer, with slightly different terms | Always answered with the rule you wrote |
| Accessory for a specific model | Someone has to go to the drawer to check cases and screen protectors | The agent answers about the lines the store carries and hands the check to the team |
| Price that changed during the week | Each salesperson answers from memory | Everyone answers from the same price list, and you update it in one place |
What does the WhatsApp agent do for cell phone stores?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Price and terms by model
Upfront, in installments and by Pix (Brazil's instant payment), using the price list you keep and update in one place.
Collecting trade-in offers
Model of the used phone, condition of the screen and battery, and the expected value, recorded before it reaches you.
Warranty on new and used devices
The period and coverage of each, without varying from one salesperson to another.
Repair price list
Screen replacement, battery and screen protector with price and turnaround, as you set them up.
Offer logged as a deal
Each quote goes into the CRM with the model they were looking for and a follow-up task.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday shop messages no longer depend on you having your phone in hand.
How does the agent start answering at the shop?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain catalog, prices, delivery, warranty, and rules, the way you would to a new employee.
The agent answers
It answers right away, records each order and quote in the included CRM, and contacts again those who went quiet.
How much does a WhatsApp AI agent cost for cell phone stores?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business Brain, the CRM, automatic follow-up and AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No contract and no setup fee.
Get started now
Create the agent and connect WhatsApp to see it working in the shop.
Create my agentWhat needs to be ready before turning the agent on in the store?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The price list by model and storage, with the date it was last updated
- The installment terms, the number of installments and the difference for Pix (Brazil's instant payment)
- The trade-in rule with a down payment: what the store accepts, what it doesn't, and who appraises the phone
- The warranty on new phones and on used ones, with the period and what each covers
- The repair price list: screen replacement, battery and screen protector, with price and turnaround
- Who does the appraisal of used phones and what hours that person is in the store
Whether the agent can give a value range for the customer's used phone or whether every appraisal goes through you.
The most common mistake: Leaving the phone price list untouched in the Brain for weeks. Phone prices change fast, and an agent answering last month's price starts the negotiation at a number the store no longer offers. Read how to fix this.
Frequently asked questions from cell phone stores
Will the agent give the right price if I change the price list every week?
It answers exactly what is in the Brain at that moment. For phones, it's worth setting aside a fixed time each week to update the price list, because it's the data that goes stale fastest at this counter.
Does it appraise the customer's used phone?
It collects the model, condition and what the customer expects to receive. The appraisal and the final value stay with you, with the phone in your hand.
Can it close the trade-in at the value the customer asked for?
Only if you authorize a range. The default is for it to record the expectation and pass it to your team to close, because the condition of the battery and screen changes the number.
Can I see who asked for a quote and didn't buy?
Yes. Each conversation becomes a contact and a deal in the CRM, with the model they were looking for and a follow-up task.
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
Answers price, installments and warranty on used phones, and logs every trade-in offer as an open deal in the CRM, with the model the person is looking for.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent