Every confusing term, explained plainly.
The used-device market is full of jargon — IMEI, FRP, refurbished vs renewed, thermal paste, activation lock. Most of it matters when you're buying. This glossary explains every term you'll encounter in plain language, with a note on why it matters at the moment of purchase.
A
A-Grade / A+ Grade
Marketing shorthand refurbishers use for cosmetic condition. A+ usually means "looks almost new", A means "minor use signs, no functional issues". Why it matters: there is no industry-wide standard, so an A grade from Cashify may not equal an A grade from a small shop. Always ask for photos, don't trust the label alone.
Activation Lock (Apple)
A feature Apple ties to your Apple ID that prevents anyone else from setting up your iPhone or iPad after a factory reset unless they can enter your password. Why it matters: a used iPhone with activation lock still enabled from the previous owner is a brick. Always verify this before paying — go to Settings → Apple ID → sign out. If the current owner can't sign out, don't buy.
B
Battery Cycle Count
The number of full charge cycles a battery has been through. Two 50% charges = one cycle. Why it matters: more cycles = more degradation. For a MacBook, 300-500 cycles is average for a 2-year-old device, over 1000 is a red flag. On Windows laptops, the number appears in the battery report.
Battery Health (%)
The current maximum capacity of a battery expressed as a percentage of its original design capacity. A 100% healthy battery holds all the charge it did new; an 80% healthy one holds 80%. Why it matters: below 80%, expect real-world usage to feel noticeably worse and plan for a battery swap within a year.
BIS Certification
Bureau of Indian Standards certification, required for electronics sold in India. Why it matters: parallel-imported (unofficial) devices often lack BIS marking. Not a big deal for personal use, but resale value drops because no Indian warranty coverage.
C
CEIR (Central Equipment Identity Register)
The Indian government portal at ceir.gov.in where stolen or lost phones can be reported and blacklisted. Why it matters: checking the IMEI of a used phone against CEIR is the single fastest way to confirm it isn't a stolen device. Do this before every used phone purchase.
Certified Refurbished
A device that has been inspected, tested, and (if needed) repaired by a certified process, then resold with a warranty. Cashify, Yaantra, 2GUD, and Apple's own refurbished program all offer certified refurbished devices. Why it matters: costs 10-15% more than raw used, gives you warranty + return window, safest option for first-time buyers.
CPU Generation
The version number of a processor (Intel 12th Gen, AMD Ryzen 5000 series, Apple M1 vs M2, etc.). Why it matters: "i7" alone means nothing — an i7 from 2015 is slower than an i5 from 2023. Always ask for the exact generation before agreeing to a laptop price.
E
eMMC vs SSD (Storage)
eMMC is a cheaper, slower storage type common in budget laptops and cheap tablets. SSD (solid-state drive) is faster and more durable. Why it matters: a used laptop with eMMC storage will feel slow no matter how much you spend on it. If someone is selling a "SSD laptop" for suspiciously cheap, verify the storage type in Task Manager or System Info before paying.
F
Face ID / Face Recognition
Biometric authentication using face scanning. Why it matters: on iPhones, Face ID being broken drops resale value significantly because the module can't be swapped without breaking pairing. Always test Face ID enrollment before buying a used iPhone X or newer.
FRP (Factory Reset Protection)
Google's Android equivalent of Apple's activation lock. After a factory reset, the device asks for the previously-signed-in Google account. Why it matters: a used Android reset by the seller without signing out is unusable until you can reach the previous owner. Ask the seller to reset in front of you, then sign in with your own Google account.
G
GPU (Graphics Processing Unit)
The chip that handles graphics and (increasingly) AI workloads. Can be integrated (built into the CPU) or discrete (separate chip, always in gaming laptops and desktops). Why it matters: discrete GPUs in used devices have often been under thermal stress; check for coil whine and fan noise. NVIDIA cards hold value better than AMD in India's resale market.
I
IMEI (International Mobile Equipment Identity)
A 15-digit number unique to every phone. Dial *#06# on any phone to display it. Why it matters: IMEI is the single most important thing to verify when buying a used phone. Match it against the box, invoice, and CEIR portal. See our IMEI guide for full detail.
M
MDM (Mobile Device Management)
Software installed on corporate or educational devices that lets an IT admin control them remotely. Why it matters: if you buy a used laptop or phone that had MDM installed, it may still be locked or monitored by the original organization. Always ask if the device was ever used by a company or school; if yes, verify MDM has been removed before buying.
N
NFC (Near Field Communication)
The chip that enables contactless payment (Google Pay, Samsung Pay) and quick-pairing with accessories. Why it matters: some cheaper used phones have had NFC damaged during previous repairs. Test it by trying a contactless payment or by tapping an NFC-enabled sticker.
O
OEM (Original Equipment Manufacturer)
Parts made by the company that made the original device (Apple parts for iPhones, Samsung parts for Samsung phones). Opposite is "aftermarket" or "compatible" parts. Why it matters: a used device with non-OEM display, battery, or camera has lower resale value and may have compatibility quirks. Always ask if any repairs have been done and whether OEM parts were used.
P
PSU (Power Supply Unit)
The component that converts wall power to what a desktop uses. Why it matters: the cheapest and most often skimped-on part in used desktop builds. A bad PSU can destroy every other component. Insist on a branded PSU (Corsair, Seasonic, Cooler Master, Antec, Thermaltake) — if the seller doesn't know the brand, factor in ₹3,500-5,000 for a replacement into your offer.
PTA (Pakistan Telecommunication Authority)
Not directly relevant in India but occasionally appears — grey-market phones sometimes originate as PTA-tax-paid Pakistani imports. Why it matters: these devices work fine in India but may show region-locked features. Rare but worth knowing.
R
RAM (Random Access Memory)
Working memory used by the device while running programs. Why it matters: for laptops, 8GB is minimum, 16GB is comfortable for most work, 32GB for heavy multitasking or creative work. On phones, 4GB is minimum for 2026 Android, 6-8GB comfortable. Older devices often have RAM below current comfort levels — factor that into whether the device will feel usable for 2-3 more years.
Refurbished
A used device that has been inspected, cleaned, tested, and had failing parts replaced before resale. See "Certified Refurbished" above for the formal version. Why it matters: the term is often used loosely — many sellers say "refurbished" when they mean "cleaned". Ask what specifically was tested or replaced.
Renewed (Amazon)
Amazon's branding for their certified refurbished program. Sold on Amazon with a specific "Renewed" badge and typically includes a limited warranty from Amazon. Why it matters: generally a safe option, but reviews vary by product — check individual product ratings before buying. Return policy is usually 30 days.
S
SIM Lock (Carrier Lock)
A phone that will only work with SIMs from a specific carrier. Common on iPhones sold in the US and some Middle East markets. Why it matters: a carrier-locked phone imported into India cannot use Indian SIMs unless you pay for unlocking (₹1,000-4,000 depending on model). Always verify a used iPhone is "network unlocked" before paying.
SMART (Storage Health)
Self-Monitoring, Analysis and Reporting Technology built into hard drives and SSDs. Reports remaining life, error count, temperature history. Why it matters: a laptop or desktop with a drive nearing failure should be priced accordingly. Use CrystalDiskInfo (Windows) or DriveDx (Mac) to check SMART data before buying.
T
ThinkPad Tax
Slang for the price premium ThinkPad models hold in the used market compared to other business laptops of similar spec. Why it matters: not a real tax — it's the market rewarding ThinkPad build quality and repairability. If you're selling a ThinkPad, price accordingly; if you're buying, expect to pay 15-25% more than an equivalent Dell or HP.
Thermal Paste
A conductive compound between a CPU/GPU and its heatsink. Why it matters: thermal paste dries out in 2-4 years. Laptops and desktops with old thermal paste run hot and throttle performance. If a used device sounds like a helicopter under mild load, budget ₹800-1,500 for a paste refresh at a service center.
True Tone (Apple)
A feature that adjusts display color temperature to ambient light. Why it matters: if a used iPhone's screen has been replaced with a non-original panel, True Tone stops working — Apple pairs the display to the device. A working True Tone toggle is a quick way to verify the screen is original.
U
UFS Storage (Universal Flash Storage)
The current storage standard in mid-range and flagship Android phones. Versions matter: UFS 2.2 is fine, UFS 3.1 is fast, UFS 4.0 is current top-end. Why it matters: a used phone that claims to be a flagship but only has UFS 2.1 storage is likely a lower variant of the same series (e.g. the base model of a flagship line, not the Ultra).
W
Warranty (Original Manufacturer)
The warranty issued by the device maker (Apple, Samsung, Lenovo, etc.) at first sale. Why it matters: in India, this warranty is usually tied to the device (via serial or IMEI) and transfers to the next owner automatically. Confirm on the manufacturer's warranty check page — a used device still under original warranty is significantly more valuable.
Warranty (Platform / Reseller)
A separate warranty offered by a refurbisher or reseller. Cashify offers 6-month warranty on most certified refurbished phones; local shops sometimes give 15-30 days. Why it matters: this is a real warranty backed by the platform, not marketing. Always keep the invoice and the warranty terms in writing.
Missing a term? Tell us — experia.mktg@gmail.com or the contact form. If we get asked about a term more than twice, it lands here.