About
Hejia Zhang is Editor-in-Chief of ShopBack's editorial team, covering consumer pricing, sale cycles, and retailer comparisons across Australia, Singapore, and the United States.
The reporting draws on ShopBack's internal merchant pricing data across thousands of retailers in the three markets, paired with primary sources: retailers' own sale histories, official promotional pages, and government statistics from the ABS, SingStat, and the BLS.
Areas of focus
Sale-cycle timing. Tracking when sales genuinely cut into margin versus when the markdown is theatre. The recurring annual cycle includes EOFY (June, AU), the Great Singapore Sale (June through August, SG), Singles' Day on November 11 (SG and increasingly AU), Black Friday and Cyber Monday (US, with growing AU and SG participation), Boxing Day (December 26, AU), and the major US weekends around Memorial Day, July 4th, and Labor Day.
Cross-retailer pricing. Same SKU compared across the field. In Australia that means Amazon AU, JB Hi-Fi, Harvey Norman, Officeworks, Big W, Kmart, plus Coles and Woolworths for groceries. In Singapore: Lazada, Shopee, Courts, Best Denki, FairPrice, Cold Storage. In the United States: Amazon, Walmart, Target, Best Buy, Costco.
Category playbooks. Running coverage on sneakers, beauty and skincare, consumer electronics, baby gear, travel, and groceries. Each playbook covers what to pay, when to pay it, and where the resale or open-box market sits twelve months on.
Cashback as a layer. How stacked cashback compares against credit-card rewards, store loyalty programs, and coupon stacking. The rules differ meaningfully across the three markets, so the coverage is written region by region rather than one size fits all.
Editorial standards
Every price reference in a Hejia Zhang article traces back to a primary source. That means the retailer's own site, the official sale page, government statistics from the ABS, SingStat, or the BLS, or ShopBack's internal merchant pricing data. It does not mean coupon aggregators, deal-listing sites, or third-party scrapers, none of which are cited.
For category playbooks (sneakers, beauty, electronics, baby gear), observed prices are checked against the actual in-cart price at the retailer during the article's coverage window, not the advertised banner. Travel and grocery pieces are verified against the booking flow or the basket total. Every number gets a date attached. The date_modified field at the top of each article reflects when those numbers were last re-verified, which happens at minimum every quarter.
Recommendations are conditional. "Best buy" is always stated for a particular reader under particular conditions, with the trade-offs at the top of the piece so readers can self-select. Errors get corrected in-article, with the date and the nature of the change noted at the top.
ShopBack receives a commission when readers complete a purchase through a cashback link. This commission does not vary by editorial coverage, and merchants cannot pay for inclusion, ranking, or favourable language. Where a merchant pays a notably higher commission than its peers on a comparable product, the conflict is disclosed inline. Editorial picks are not sold.
Get in touch
Tips, corrections, or merchant pricing data I should look at: [email protected]
Corrections are logged in-article with the date and what changed.
Editorial team
Hejia Zhang leads ShopBack's shopping editorial team and writes cross-vertical pieces on sale-cycle timing, cross-retailer pricing and the cashback layer. The other byline on the team:
- Garry Shi, Cashback Expert — ShopBack product expertise covering cashback, the wallet, ShopBack PayLater, stacking, and member features
Hejia Zhang and Garry cover complementary surfaces. Hejia Zhang is the outside-in editor (what to buy, when, where the cashback layer sits in a wider purchase decision); Garry is the inside-out editor (how the ShopBack product itself works once a shopper is using it).
Brands, work with us: [email protected].
Articles by Hejia Zhang
Shoes Overseas vs Singapore 2026: How Much Do Singaporeans Save?
A concrete price comparison of buying shoes overseas vs in Singapore in 2026, covering sneakers, casual shoes, and formal footwear, including tax refunds, GST on re-entry, and which destinations actually save money.
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Is It Worth Overpaying Your HDB Loan to Save on Interest?
HDB concessionary loan rate is 2.6% p.a. CPF OA earns 2.5%. The spread is just 0.1%, which means overpaying your HDB loan almost never makes mathematical sense — unless you're close to retirement or have no investments.
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HDB BTO vs Resale vs EC: Real Cost Comparison for First-Time Buyers
BTO is cheaper upfront but takes 4–6 years to collect. Resale is immediate but costs $100,000–$300,000 more. EC sits in between with private condo finishes at HDB-adjacent prices. Here's the real cost comparison across all three for 2026.
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Every Singapore Payday Sale Window in 2026, Plus the 5 Bigger Events That Beat Them
A month-by-month Singapore fashion sale calendar for 2026. Payday sales on Zalora, ASOS, Shopee, and Lazada typically deliver 20 to 40 percent off, but the deepest cuts cluster around Great Singapore Sale (June to July), 9.9, 11.11, and 12.12. Payday windows win for mid-priced basics, 9.9 wins for launches, 11.11 wins for depth, 12.12 wins for gifting.
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Investing Your First $10,000 in Singapore: CPF-SA, Robo-Advisors, or ETFs?
CPF SA tops up earn 4% guaranteed. Robo-advisors return 5–8% p.a. historically with moderate risk. ETFs return 6–10% p.a. historically with full market exposure. For a first $10,000, the right split depends on your age, liquidity needs, and risk tolerance.
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How Many Miles Do You Need for a Business Class Flight to Tokyo from Singapore?
Business class to Tokyo from Singapore costs 50,000 to 75,000 miles return depending on the programme. Here's a breakdown of KrisFlyer, Asia Miles, and Avios redemptions for Singapore-Tokyo in 2026.
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Bangkok vs Bali: Which is Cheaper for a 5-Day Trip from Singapore in 2026?
Bangkok or Bali for a 5-day trip from Singapore in 2026? A direct cost comparison across flights, accommodation, food, transport, and activities to find out which destination is actually cheaper.
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HDB Loan vs Bank Loan: Real Cost Difference Over 25 Years
HDB concessionary loan at 2.6% p.a. vs bank loan at 3.5–5% p.a. Over 25 years on a $400,000 loan, the difference in total interest paid is $50,000–$130,000. The right choice depends on your risk tolerance, not just the rate.
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The RTS Link Opens January 2027: What the Cheapest Way Singapore to KL Actually Looks Like Right Now (2026)
Bus from SGD 12, train from SGD 24, flight from SGD 45. Full live-price comparison across bus, train, and flight from Singapore to Kuala Lumpur in 2026, plus the RTS Link January 2027 update and the planner to book.
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Is Scoot or AirAsia Cheaper for Bangkok from Singapore? Real Cost Comparison (2026)
Scoot vs AirAsia for Singapore to Bangkok flights in 2026 — a real cost comparison including baggage, seat selection, and total out-of-pocket fares, not just base prices.
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