Second Hand iPhone Buying Guide: 7 Red Flags to Avoid Before You Pay

A refurbished iPhone at Grest is a pre-owned device that has been carefully restored to full working condition by our certified experts. Every phone undergoes a rigorous 50+ quality checks from hardware to software before being graded and made available for sale. Unlike “used” phones sold without checks, Grest devices are professionally tested, certified, and backed by warranty, so you get performance you can trust.

A used phone is sold in “as-is” condition, with no guarantee of quality or performance. A refurbished iPhone at Grest, however, goes through repairs, part replacements (if required), and 50+ quality checks. We also verify authenticity, sanitize data, reset the system, and certify it for sale. The difference is simple: used is uncertain, refurbished is assured.

With a refurbished iPhone, you get the same Apple experience at up to 60% lower cost. It’s a smarter purchase because you’re not just saving money, you’re also helping reduce e-waste. For many of our customers, buying refurbished means owning aspirational devices without overspending.

Yes. Each phone is professionally tested, graded, and certified, ensuring it performs just like new. With a 6 month warranty included, you can be confident you’re getting a reliable device.

Wherever possible, we retain original Apple parts. If replacements are needed, we use high-quality, compatible parts that pass all technical and performance standards. Battery and display are given special attention, as these matter most to performance.

By choosing refurbished, you’re reducing e-waste, saving resources, and contributing to a circular economy, without compromising on style or quality.

No, there’s no visible difference. A Grest refurbished iPhone looks, feels, and functions like new. Only your wallet (and the planet) will know the difference.

Every phone undergoes 50+ technical and functional tests. These cover: screen, battery health, speakers, camera, microphone, sensors, software, connectivity, and physical condition. Only devices that pass all benchmarks are listed on our platform.

At Grest, each device is subjected to three levels of testing:

1. Initial diagnostic (hardware + software check)
2. Expert inspection & repair
3. Final certification & grading

• Superb: Near-mint condition, minimal signs of use, >85% battery health.
• Good: Light signs of use, excellent performance, >80% battery health.
• Fair: Visible signs of use but fully functional, >80% battery health.

This grading system helps you choose based on budget and preference.

Yes. All devices are checked and certified by trained technicians who specialize in Apple refurbishment. Only after passing our multi-step verification do they get listed on Grest.

We guarantee a minimum 80% battery health for every iPhone. If the original battery doesn’t meet standards, it is replaced with a high-quality battery that meets performance benchmarks.

Yes, every iPhone is verified to ensure it is completely unlocked, iCloud-free, and reset to factory settings. This means you get a phone with a clean slate, just like new.

Yes. Every phone comes with compatible charging accessories, tested for safety and performance.

Yes. Every iPhone you buy from Grest is backed by a 6 + 6 month warranty for complete peace of mind.

Most Grest devices come with a 6-month warranty, starting from your purchase date. We offer an extended 6-month warranty for ₹1499 for each customer.

Our warranty covers software issues and functional problems such as speaker, microphone, and performance glitches.

Physical damage, display damage, water damage, and unauthorized repairs are not covered under warranty. Accessories such as chargers and cables are covered only for manufacturing defects.

You can raise a request by contacting our customer support team via phone, email, or our website. Our service team will guide you through the pickup and repair/replacement process.

Yes. No matter where you are in India, your warranty remains valid. We provide nationwide support with hassle-free service.

Yes, you can purchase an extended warranty for 6 months at the time of buying your iPhone. This gives you even longer protection and peace of mind.

We accept all major payment options — credit/debit cards, UPI, net banking, wallets, and EMI. We also support Cash on Delivery (COD), giving you flexibility and peace of mind.

Absolutely. All transactions are secured with industry-standard encryption and trusted payment gateways. Your payment information is completely safe.

Yes. We offer easy EMI options on credit cards and Bajaj Finance, as well as Buy Now, Pay Later solutions through leading partners. This lets you own an iPhone without the upfront burden.

Currently, only one payment method per order is allowed. However, you can use discount coupons along with your preferred payment method.

Yes. A GST invoice is provided for every purchase, making your device officially billed and eligible for warranty and business claims (if applicable).

Yes, COD is available across India. You can check availability at checkout by entering your pin code.

We ship within 24–48 hours of order confirmation. Delivery typically takes 4–6 business days depending on your location. Metro cities often receive faster deliveries.

Yes, Grest offers free standard shipping across India. Express shipping may be available at an additional cost.

Yes. Once your order is shipped, you’ll receive a tracking ID to follow your package in real time.

In the rare case of damage or incorrect delivery, you can raise a request with our support team within 12 hours of delivery. We’ll arrange for a free return, replacement, or refund.

Yes. Grest delivers to over 25,000+ pin codes across India.

Currently, scheduled deliveries are not available. However, you can coordinate with the delivery partner once the order is out for delivery.

Your iPhone is packed in secure, tamper-proof packaging to ensure it arrives safe and ready to use.

First, ensure the device is charged using the provided charger. If it still doesn’t turn on, try a hard reset (press and hold the power + volume down button for 10–15 seconds). If the issue persists, contact Grest support.

Battery performance depends on usage. Ensure background apps are minimized, update to the latest iOS, and reduce brightness. If the issue persists, contact Grest support.

Restart the device and check for software updates. If the issue continues, our warranty covers functional issues like camera, speaker, or microphone problems — simply raise a support request.

Every Grest iPhone is verified against Apple’s IMEI/serial number database. You can check your device’s authenticity through Apple’s official website.

This should never happen with Grest phones as they are certified iCloud-unlocked. In case you face such an issue, contact our support team immediately for resolution.

Restart your device, reset network settings (Settings > General > Reset > Reset Network Settings). If it still doesn’t work, contact Grest support for assistance.

Simply raise a warranty claim request through our website or customer care. We’ll arrange for your device to be picked up, serviced by certified technicians, and returned to you.