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
Decathlon Singapore vs Decathlon JB (Mid Valley and Bukit Indah) in 2026: The Honest Cross-Border Math
For Singapore shoppers in 2026, Decathlon JB stays 25 to 40% cheaper on equivalent SKUs after FX and SST refund. The trip math only works above roughly S$220 of intended spend; below that, transport, time, and the GST declaration at Woodlands erase the saving. The right strategy is a basket run, not a single-item run.
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Tokyo Shinjuku vs Shibuya vs Asakusa vs Ginza 2026: Best First Base
Shinjuku, Shibuya, Asakusa, or Ginza as your Tokyo base? A practical comparison of transit, hotel cost, food density, and which neighbourhood suits which type of Singapore traveller for a first Tokyo trip.
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iPhone 17 Pro Price: Singapore vs Japan vs Malaysia 2026
For SG shoppers in 2026, the iPhone 17 Pro 256GB lands cheapest in Japan after tourist tax-free pricing, around S$1,665 all-in versus S$1,899 at Apple Singapore and roughly S$1,884 at Apple Malaysia after SST. The savings hold above the 256GB tier; below it, JB and Singapore are within S$60 once flights and time cost are honest.
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Singapore Family Theme Park Showdown 2026: USS vs Tokyo Disney vs USJ
A full trip-cost comparison for Singapore families choosing between Universal Studios Singapore, Tokyo Disneyland or DisneySea, and Universal Studios Japan in 2026, including flights, hotel, park tickets, food, and cashback stacking.
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Great Wall 2026: Mutianyu vs Jinshanling vs Badaling from Beijing
Mutianyu, Jinshanling, or Badaling for a Great Wall day trip from Beijing? A practical comparison of crowds, transport, scenery, difficulty, and which section suits which type of Singapore traveller.
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How Much Should You Actually Spend on a Wedding in Singapore in 2026? Full Cost Breakdown
A line-by-line wedding spend guide for Singapore in 2026 — banquet vs solemnisation, photography, gowns, honeymoon, and how ang bao realistically offsets the total bill.
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Beijing 7-Day Budget Breakdown for Singapore Travellers: Flights, Hotels, Great Wall, and Food in 2026
A realistic 7-day Beijing budget for a Singapore traveller in 2026, flights, hotels, Forbidden City, Great Wall day trip, food, and transport, with line-by-line SGD costs and a total range.
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How Much Does an HDB Renovation Cost in Singapore in 2026? BTO vs Resale Full Breakdown
A room-by-room cost guide for HDB renovation in Singapore in 2026 — BTO 4-room, 5-room and resale flats compared, with realistic spend ranges, ID vs contractor trade-offs, and where cashback meaningfully cuts the bill.
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The Weeknd Singapore 2026: Best Hotels Near National Stadium and Full Night-Out Budget Breakdown
The Weeknd performs at Singapore National Stadium on 2 and 3 October 2026. Here's which nearby hotels are actually worth booking, how much the full night will cost, and where to cut spending without ruining the experience.
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The JR Pass Now Costs 69% More Than Before: Is It Still Worth Buying in 2026?
The JR Pass jumped 70% in October 2023. For a Singapore traveller in 2026, when does the 7-day, 14-day, or 21-day pass still pay off versus buying single Shinkansen tickets? A clear break-even guide.
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