What does “sealed, unactivated” mean?

The phone is still factory-sealed — never opened or activated. Buyers pay the most for these; once opened or activated, expect at least HK$300 off, depending on the shop.

Why can the buyback price be higher than Apple's retail price?

It's supply and demand: when a new iPhone first launches, stock is tight and some buyers will pay above retail to get one immediately, so resellers can buy yours and flip it at a profit. The premium usually shrinks — or turns negative — once supply stabilises.

How often are buyback prices updated?

Sin Tat buyback prices can move daily or even hourly. This page follows the latest quotes, with the update time under each table — but the safest move is always to ask the shop for its live quote before you commit.

Sin Tat iPhone buyback prices: daily iPhone 18 Pro Max values, ranked by flip premium

By Perk editor· Last verified: 2 October 2026 (HKT)· 4 min read

The latest iPhone buyback prices at Sin Tat: iPhone 18 Pro Max, iPhone 18 Pro, iPhone Air and iPhone 18 buyback values vs official retail, with the premium at a glance. Prices move daily — reference only; always confirm the live in-store quote.

Key facts

Buyback prices below span the 18 September 2026 Sin Tat reference quotes plus fresh shop quotes from the Telegram group on 2 October 2026, for sealed, unactivated units. Opened or activated units are typically discounted by at least HK$300.
2 October group quotes: large blue 512GB at HK$11,680 (WK), small blue 512GB at HK$10,400 (Danna) — down roughly HK$2,300 in two weeks, with a big shipment wave expected 2–9 October.
The standout flip is the iPhone 18 Pro Max: the 2TB buys back at HK$23,800, HK$1,801 above official retail; the 1TB is HK$1,401 above; the 256GB HK$1,301 above.
The iPhone 18 Pro is roughly break-even: only the 512GB carries a HK$151 premium, while the 256GB, 1TB and 2TB buy back HK$99 to HK$299 below retail.
The iPhone Air and standard iPhone 18 don't flip: buyback values match or trail retail — the Air 1TB buys back at HK$10,199, HK$1,800 below retail.
Buyback prices can move by the hour. Always confirm the live in-store quote before committing; quotes can differ by hundreds of dollars between shops.

Last verified: 2 October 2026 (HKT) · Official terms prevail

Buyback price trend

The chart only shows models with quotes on two or more days; gray dashed lines mark the official retail prices.

iPhone 18 Pro Max buyback prices (Sealed, unactivated)

Model	Shop	Buyback	Official retail	Diff	Change
18 Pro Max 256GB Black	G79	HK$12,040	HK$11,499	+HK$541	▲ HK$140
18 Pro Max 256GB White	鵬程電訊	HK$11,180	HK$11,499	-HK$319	▼ HK$1,620
18 Pro Max 256GB Blue	G79	HK$11,570	HK$11,499	+HK$71	▲ HK$70
18 Pro Max 256GB Red	G79	HK$13,250	HK$11,499	+HK$1,751	▲ HK$1,100
18 Pro Max 512GB Black	G79	HK$13,560	HK$13,299	+HK$261	▲ HK$110
18 Pro Max 512GB White	鵬程電訊	HK$12,750	HK$13,299	-HK$549	▼ HK$1,250
18 Pro Max 512GB Blue	WK	HK$11,680	HK$13,299	-HK$1,619	▼ HK$1,440
18 Pro Max 512GB Red	G79	HK$14,050	HK$13,299	+HK$751	▲ HK$50
18 Pro Max 1TB Black	G79	HK$17,120	HK$16,799	+HK$321	▲ HK$120
18 Pro Max 1TB White	鵬程電訊	HK$16,500	HK$16,799	-HK$299	▼ HK$1,700
18 Pro Max 1TB Blue	G79	HK$16,730	HK$16,799	-HK$69	▲ HK$30
18 Pro Max 1TB Red	G79	HK$17,330	HK$16,799	+HK$531	▲ HK$80
18 Pro Max 2TB Black	G79	HK$20,950	HK$21,999	-HK$1,049	▼ HK$50
18 Pro Max 2TB White	鵬程電訊	HK$20,500	HK$21,999	-HK$1,499	▼ HK$3,300
18 Pro Max 2TB Blue	G79	HK$20,500	HK$21,999	-HK$1,499	▼ HK$100
18 Pro Max 2TB Red	G79	HK$21,050	HK$21,999	-HK$949	▲ HK$50
18 Pro Max 256GB Silver	G79	HK$11,310	HK$11,499	-HK$189	—
18 Pro Max 512GB Silver	G79	HK$13,050	HK$13,299	-HK$249	—
18 Pro Max 1TB Silver	G79	HK$16,530	HK$16,799	-HK$269	—
18 Pro Max 2TB Silver	G79	HK$20,100	HK$21,999	-HK$1,899	—

Updated: 2 October 2026 | Variants without fresh quotes use the 18 September reference | Opened/activated units typically HK$300 less | A positive difference means the model flips above retail | Reference only

iPhone 18 Pro buyback prices (Sealed, unactivated)

Model	Shop	Buyback	Official retail	Diff	Change
18 Pro 256GB Black	Bo	HK$10,520	HK$10,499	+HK$21	▼ HK$30
18 Pro 256GB White	鵬程電訊	HK$10,000	HK$10,499	-HK$499	▼ HK$400
18 Pro 256GB Blue	G79	HK$10,200	HK$10,499	-HK$299	▲ HK$50
18 Pro 256GB Red	誠	HK$10,680	HK$10,499	+HK$181	—
18 Pro 512GB Black	誠	HK$12,210	HK$12,299	-HK$89	▲ HK$30
18 Pro 512GB White	鵬程電訊	HK$11,700	HK$12,299	-HK$599	▼ HK$650
18 Pro 512GB Blue	丹娜	HK$10,400	HK$12,299	-HK$1,899	▼ HK$1,510
18 Pro 512GB Red	G79	HK$12,160	HK$12,299	-HK$139	—
18 Pro 1TB Black	G79	HK$15,850	HK$15,799	+HK$51	▼ HK$50
18 Pro 1TB White	鵬程電訊	HK$15,400	HK$15,799	-HK$399	▼ HK$300
18 Pro 1TB Blue	G79	HK$15,520	HK$15,799	-HK$279	▼ HK$80
18 Pro 1TB Red	G79	HK$15,850	HK$15,799	+HK$51	▲ HK$50
18 Pro 2TB Black	G79	HK$19,400	HK$20,999	-HK$1,599	▼ HK$1,300
18 Pro 2TB White	Sin Tat reference	HK$20,700	HK$20,999	-HK$299	—
18 Pro 2TB Blue	G79	HK$19,000	HK$20,999	-HK$1,999	▼ HK$1,700
18 Pro 2TB Red	G79	HK$19,400	HK$20,999	-HK$1,599	▼ HK$1,300
18 Pro 256GB Silver	G79	HK$10,200	HK$10,499	-HK$299	—
18 Pro 512GB Silver	G79	HK$11,910	HK$12,299	-HK$389	—
18 Pro 1TB Silver	G79	HK$15,520	HK$15,799	-HK$279	—
18 Pro 2TB Silver	G79	HK$19,000	HK$20,999	-HK$1,999	—

Updated: 2 October 2026 | Variants without fresh quotes use the 18 September reference | Opened/activated units typically HK$300 less | Difference near zero — roughly break-even | Reference only

iPhone Air buyback prices (Sealed, unactivated)

Model	Shop	Buyback	Official retail	Diff	Change
Air 256GB White	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
Air 256GB Black	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
Air 256GB Blue	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
Air 256GB Gold	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
Air 512GB White	Sin Tat reference	HK$10,299	HK$10,299	HK$0	—
Air 512GB Black	Sin Tat reference	HK$10,299	HK$10,299	HK$0	—
Air 512GB Blue	Sin Tat reference	HK$10,299	HK$10,299	HK$0	—
Air 512GB Gold	Sin Tat reference	HK$10,299	HK$10,299	HK$0	—
Air 1TB White	Sin Tat reference	HK$10,199	HK$11,999	-HK$1,800	—
Air 1TB Black	Sin Tat reference	HK$10,199	HK$11,999	-HK$1,800	—
Air 1TB Blue	Sin Tat reference	HK$10,199	HK$11,999	-HK$1,800	—
Air 1TB Gold	Sin Tat reference	HK$10,199	HK$11,999	-HK$1,800	—

Updated: 2 October 2026 | Variants without fresh quotes use the 18 September reference | Opened/activated units typically HK$300 less | Not flippable: buyback trails official retail | Reference only

iPhone 18 buyback prices (Sealed, unactivated)

Model	Shop	Buyback	Official retail	Diff	Change
18 256GB White	Sin Tat reference	HK$6,899	HK$6,899	HK$0	—
18 256GB Black	Sin Tat reference	HK$6,899	HK$6,899	HK$0	—
18 256GB Blue	Sin Tat reference	HK$6,899	HK$6,899	HK$0	—
18 256GB Green	Sin Tat reference	HK$6,899	HK$6,899	HK$0	—
18 256GB Pink	Sin Tat reference	HK$6,899	HK$6,899	HK$0	—
18 512GB White	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
18 512GB Black	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
18 512GB Blue	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
18 512GB Green	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—
18 512GB Pink	Sin Tat reference	HK$8,599	HK$8,599	HK$0	—

Updated: 2 October 2026 | Variants without fresh quotes use the 18 September reference | Opened/activated units typically HK$300 less | Not flippable: buyback trails official retail | Reference only

How to read this table

“Difference” is the buyback price minus the official retail price. A positive difference means the market will pay above Apple's price for your phone — it flips. A negative difference means you'd sell at a loss.

“Sealed, unactivated” means the phone is still in its factory seal, never opened or activated. Once opened or activated, shops typically deduct at least HK$300, varying by shop.

The “Shop” column is the quote source. For now there is a single Sin Tat reference; more shop quotes will be added over time so you can compare.

Important notice

All prices are for reference only, not live buyback prices; the actual price is whatever the shop quotes on the spot — confirm with the shop before committing.

Buyback prices move fast with supply, exchange rates and grey-market demand; this morning's price may already be stale by the afternoon.

This page is not buying or selling advice.

Sources

iPhone 18 Pro Max Sin Tat buyback prices (iPhoneTrade.HK) · iPhoneTrade.HK · accessed 2 October 2026

FAQ

What does “sealed, unactivated” mean?: The phone is still factory-sealed — never opened or activated. Buyers pay the most for these; once opened or activated, expect at least HK$300 off, depending on the shop.
Why can the buyback price be higher than Apple's retail price?: It's supply and demand: when a new iPhone first launches, stock is tight and some buyers will pay above retail to get one immediately, so resellers can buy yours and flip it at a profit. The premium usually shrinks — or turns negative — once supply stabilises.
How often are buyback prices updated?: Sin Tat buyback prices can move daily or even hourly. This page follows the latest quotes, with the update time under each table — but the safest move is always to ask the shop for its live quote before you commit.

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Last updated 2 October 2026. Offers change frequently - always confirm details on the provider's site before applying. Not financial advice.