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
1Gbps Broadband Singapore 2026: Singtel vs StarHub vs M1 vs MyRepublic vs WhizComms
MyRepublic and WhizComms win on standalone 1Gbps price in Singapore 2026, Singtel on mobile bundling and mesh WiFi, StarHub on entertainment, M1 on flexibility.
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9.9 vs 10.10 vs 11.11 Shopping Timing Singapore 2026: What to Buy When
11.11 still delivers the deepest Singapore discounts in 2026, but 9.9 wins for electronics refresh, 10.10 for fashion and beauty, and 12.12 for gifts.
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Term life: AIA vs Great Eastern vs Prudential vs Manulife Singapore 2026
A structured 2026 comparison of the four large agency insurers Singaporeans buy term life from: AIA, Great Eastern, Prudential, and Manulife. Coverage structure, riders, level versus decreasing term, and typical premium ranges so you can size sum assured and pick a policy that matches your dependants and debt.
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What Are the Best Cashback Apps in Singapore in 2026?
The best Cashback apps in Singapore in 2026 split by job: ShopBack for online shopping and travel at stores like Shopee, Lazada and Trip.com, a Cashback card for everyday spend, and each store's own rewards.
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Is Black Friday or 11.11 Better for Shopping in Singapore in 2026?
Black Friday or 11.11 in Singapore 2026? 11.11 (Wed 11 Nov) usually suits Shopee and Lazada voucher hauls; Black Friday (Fri 27 Nov) suits global brands and ZALORA fashion. Plus the 11.11 playbook: early birds, noon drops, flash close.
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Preloved Watches: Carousell vs Chrono24 vs Komehyo, SG vs HK vs Japan
Preloved Rolex, Audemars Piguet and Omega prices on Carousell, Chrono24 and Japan dealers like Komehyo in 2026. Japan and Hong Kong grey undercut Singapore.
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Is Klook Cheaper Than Direct Booking for Japan Activities From Singapore in 2026?
For Singapore travellers, Klook is often the cheaper way to book standard Japan activities such as Universal Studios Japan and Tokyo Disneyland one-day tickets, teamLab, Shibuya Sky and Mt Fuji day tours, mainly because it charges in SGD while official Japanese operator sites charge in JPY and most Singapore cards add a foreign currency fee. For premium variants like Universal Express Pass, Disney Premier Access and park restaurant reservations, the official channel is often the only full option. This guide shows how to compare each category and where direct booking wins.
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Booking.com vs Agoda vs Trip.com for Japan Hotels: Which OTA Is Cheapest for Singapore Travellers in 2026?
No single OTA is always cheapest for Japan hotels; the cheaper platform changes with the hotel and the dates. Trip.com, Agoda, and Booking.com each have strengths, and Booking.com Genius discounts can tip international chain hotels. This guide covers how to compare the same room on all three, cancellation and payment terms, the loyalty programmes (Trip Coins, AgodaCash and Agoda VIP, Booking.com Genius), and edge cases such as ryokan, capsule hotels and Golden Week.
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National Day Long Weekend 2026: Staycation in Singapore or Short Getaway
National Day 2026 long weekend in Singapore: a mid-tier staycation runs S$500 to S$900 for two, JB or Batam S$450 to S$800, Bali or Bangkok S$900 to S$1,600.
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National Day 2026 Singapore Promo Tracker: OG, Cheers, Giant, FairPrice Live Now
SG61 promos ran in Singapore from July to August 2026: OG storewide until Jul 26, Giant grocery Jul 16 to 29, Cheers and FairPrice Xpress Jul 23 to Aug 19. All windows have now ended.
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