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
Best Singapore Credit Cards for Japan Travel in 2026: FX, Miles, Lounges Compared
For Singapore travellers heading to Japan in 2026, UOB PRVI Miles is the workhorse winner on raw miles earn, HSBC Revolution is the FX-markup champion at around 1.5% all-in, and DBS Altitude Visa is the best free-annual-fee compromise once waived. Suica via Apple Wallet now accepts both Visa and Mastercard from all six issuers compared here.
Read
Ryokan vs Hotel in Japan: Which to Book and When for a Singapore Trip in 2026
Ryokan or hotel for your Japan stay? A practical comparison of cost, experience, dinner ritual, room style, and which option suits which night of your Singapore-to-Japan trip, with worked examples for Hakone and Kyoto.
Read
Luxury Watches Singapore vs Hong Kong vs Japan in 2026: Where to Buy, Tax Refunds, and Waitlists
For a Singapore buyer in 2026, Japan is the cheapest source for most popular references after the 10% consumption tax refund and a weak yen, often 8 to 20% below SG retail. Hong Kong sits roughly at parity with Singapore on hard-allocation pieces like Rolex steel sports, while Singapore wins on after-sales convenience and AD relationship value.
Read
Is COE Renewal Worth It in Singapore in 2026? PARF, PQP, and the Real Decision
For most private car owners in Singapore in 2026, renewing COE only pays off if your car is a Cat B with strong residual mechanical life and you drive 15,000 km+ per year, or if PQP is meaningfully below the prevailing Cat A or B bid. Renewing forfeits the 50% PARF rebate (if still within the 10-year mark), so the real comparison is PQP plus road-tax surcharge versus PARF rebate plus a fresh COE car.
Read
Cost of Raising a Child in Singapore in 2026: Pregnancy to P6, the Honest SGD Breakdown
For Singapore parents in 2026, raising one child from pregnancy through P6 costs roughly S$190,000 to S$350,000 in total household outlay before Baby Bonus, MediSave maternity offsets, and CDA matching. The variance is driven by daycare choice, enrichment intensity, and whether you stay public or private.
Read
Scoot vs Jetstar Asia vs AirAsia 2026: SG Budget Airline by Route
For Singapore budget travellers in 2026, Scoot dominates long-haul (Athens, Berlin, Honolulu) and Southeast Asia routes. Jetstar Asia (now closed) formerly led on Australia. AirAsia wins on the cheapest base fares to Malaysia, Indonesia, and Thailand but loses on baggage and seat pitch. The choice is route plus how much you add on top.
Read
Beijing to Shanghai: G-Train vs Flight, Which Is Better for Singapore Travellers in 2026?
Beijing to Shanghai by G-train or by domestic flight? A door-to-door comparison of time, cost, comfort, reliability, and which option suits which Singapore traveller on a multi-city China trip.
Read
Booking China High-Speed Rail: 12306 vs Trip.com vs Klook for Singapore Travellers
Three ways to book China's high-speed rail from Singapore: the official 12306 portal, Trip.com, and Klook. A practical comparison of price, payment options, seat selection, and which platform suits which traveller.
Read
DBS Altitude vs UOB PRVI Miles vs Citi PremierMiles in 2026: Which Singapore Miles Card Wins for Your Spend
For Singapore miles collectors in 2026, DBS Altitude wins on flight and hotel spend (3 miles per S$1), UOB PRVI Miles wins on overseas and luxury spend (2.4 to 6 miles per S$1), and Citi PremierMiles wins on miles validity (never expire). The right card depends on whether you fly enough to clear minimum spend on multiple cards.
Read
DBS vs OCBC vs UOB Home Loan in 2026: Fixed, Floating, and the Real Total Cost
For Singapore homebuyers in 2026, DBS leads on 2-year fixed packages (around 2.45% p.a.), OCBC leads on SORA-linked floating (3M SORA + 0.55%), and UOB leads on flexibility (free conversion after lock-in). The fixed vs floating choice is about cash flow certainty, not which bank wins.
Read