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).
Articles by Hejia Zhang
Vestiaire vs Fashionphile vs Rebag: SG Preloved Luxury 2026
Vestiaire Collective, Fashionphile and Rebag compared for Singapore preloved luxury handbag buyers in 2026: catalogue, authentication, returns, landed cost.
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Goyard vs Moynat vs Delvaux: Discreet Luxury Leather in Singapore 2026
Goyard wins the discreet logo tote with tight global pricing, Moynat offers quiet Paris craft at a premium and Delvaux sits closest to Hermes. Singapore 2026.
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John Lobb vs Edward Green vs Crockett & Jones: Singapore Luxury Men's Shoes 2026
Crockett & Jones is the best value English bench-made shoe for Singapore buyers in 2026, Edward Green sits mid-tier and John Lobb Paris tops the price range.
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Hermes Birkin vs Kelly vs Constance: SG vs Paris vs Tokyo 2026
Paris is the cheapest legitimate source for a Hermes Birkin, Kelly or Constance when you can get an allocation, Tokyo trims a little, Singapore wins on stock.
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Creed vs Tom Ford vs Maison Francis Kurkdjian: SG vs Paris vs Dubai 2026
Creed Aventus, Tom Ford Private Blend and Maison Francis Kurkdjian Baccarat Rouge 540 priced in Singapore, Paris and Dubai duty free for 2026: who wins.
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Patek vs AP vs Vacheron: Singapore vs Geneva vs Tokyo 2026
For a Singapore buyer weighing the holy trinity of Swiss watchmaking (Patek Philippe, Audemars Piguet, Vacheron Constantin), Geneva boutiques rarely undercut Singapore boutique list price once you add the Swiss VAT refund calculation, and Tokyo Ginza boutiques can beat Singapore on tax-refund yen pricing for select references but face waitlists similar to Singapore's. This guide breaks down 2026 retail dynamics, waitlist realities, tax-refund mechanics for each city, and when each city wins.
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Buccellati vs Graff vs Harry Winston: Singapore vs Milan vs NYC 2026
Milan is the cheapest source for Buccellati, NYC edges Singapore on Graff and Harry Winston with tax planning, and Singapore keeps the service edge. 2026 guide.
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Quiet Luxury 2026: Loro Piana vs Brunello Cucinelli vs The Row in Singapore
Loro Piana, Brunello Cucinelli and The Row compared for Singapore quiet luxury buyers in 2026: signature pieces, where to buy, when Milan or Paris wins.
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Southeast Asia 2026: Cash vs GrabPay vs Touch 'n Go for SG Tourists
Cash vs GrabPay vs Touch 'n Go eWallet across JB, KL, Penang, Bangkok, Bali. When each wins, the cross-border FX hidden fees, and how a Singapore multicurrency card fits.
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Europe 2026: EUR Cash vs Multicurrency Card vs Tap-to-Pay for SG
Comparing EUR cash, SGD-loaded YouTrip/Revolut/Wise multicurrency cards, and tap-to-pay with SG Visa/Mastercard on a 2026 Europe trip: FX cost, ATM fees, acceptance.
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