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
Is iHerb Worth It for Singaporeans in 2026? Prices, Shipping Costs, and How to Save More
A practical 2026 assessment of whether iHerb is worth using from Singapore — how prices and shipping stack up, when it makes sense, and how to get more out of every order.
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How Much Should a Singapore Family Budget for a 5-Day Bali Trip in 2026?
Planning a 5-day Bali family trip from Singapore in 2026? A realistic budget breakdown for families of 3–5, covering flights, villa accommodation, kids' activities, transport, and hidden costs.
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How to Get the Best Price on Nike and Adidas in Singapore: Online vs Retail vs Sale Cycles (2026)
A practical guide to finding the best price on Nike and Adidas in Singapore in 2026, comparing official online stores, multi-brand retailers, outlet pricing, and predictable sale windows.
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Is It Cheaper to Buy Lululemon in Singapore or Overseas? (2026)
A price comparison of Lululemon in Singapore vs the USA, Australia, and Hong Kong in 2026, covering real price gaps, currency effects, and when buying overseas actually saves money.
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Changi Airport vs City Store: Do You Actually Save on Fashion at Duty-Free in 2026?
Changi duty-free skips Singapore's 9% GST, but fashion markups at travel retail often cancel the savings. Here's when it's worth it and when it isn't.
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Taobao vs Shopee vs Lazada 2026: When Is Taobao Direct Still Worth It?
A direct comparison of Taobao vs Shopee and Lazada in 2026, when ordering from Taobao to Singapore is still worth it, and when local platforms have closed the gap.
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Flights Singapore to Tokyo 2026: Cost, Booking Window, Airline
Singapore to Tokyo flights in 2026: real return fare ranges for budget and full-service carriers, the best booking window, and which airlines to use depending on your priorities.
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How to Maximise Your CPF Interest: Step-by-Step for Different Age Groups
CPF SA earns 4% p.a. and the first $60,000 in combined CPF balances earns an extra 1% — but most Singaporeans leave these bonuses on the table by not understanding the account structure, the 1% floor, and the power of early SA contributions.
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How Much Does It Actually Cost to Own a Car in Singapore Per Month?
The true monthly cost of car ownership in Singapore is $1,800–$3,500 for a mass-market sedan — not just the loan instalment. Once you include COE depreciation, insurance, parking, petrol, and ERP, a car costs 4–7x more than most people budget for.
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Is Amazon Singapore Actually Cheaper Than Lazada or Shopee in 2026? A Real Breakdown
A real price comparison of Amazon SG vs Lazada and Shopee in 2026 across common categories — with specific examples and a clear verdict on when Amazon is and isn't worth it.
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